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Journal of Occupational and Organizational Psychology (2012)
©2012 The British Psychological Society
The
British
Psychological
Society
www.wileyonlinelibrary.com
Perceived value congruence and team innovation
Rebecca Mitchell
1,
*, Vicki Parker
2
, Michelle Giles
3
, Pauline Joyce
4
and Vico Chiang
5
1
University of Newcastle
2
University of New England
3
Hunter New England Area Health Service
4
Royal College of Surgeons
5
Hong Kong Polytechnic University, 1
This article develops and tests a model of perceived value congruence effects on team
innovation and explores a contingent-mediated pathway explaining this relationship.
Survey data from 346 members of 75 health care teams support a significant relationship
between value congruence and innovation. The study data indicate that one of the
mechanisms through which perceived value congruence facilitates the generation of novel
ideas is through the development of team identification. This mechanism is contingent,
however, on the extent to which members focus on profession as a salient social category.
Our data support a moderated mediation pathway in which the effect of value congruence
is explained through team identification and its interactive effect on innovation.
Practitioner Points
Highlights to organizations, particularly in the health care industry, the importance of
perceived value congruence in generating innovative team outcomes, and reinforces
the merit of strategies to develop perceived congruence through, for example,
leadership and interprofessional education.
Reinforces the value to leaders tasked with innovation of heightening member
awareness of professional diversity and associated knowledge differences, within an
overarching framework of shared values.
Organizations continue to utilize teams to achieve multifaceted and interdependent tasks
(Lawler, Mohrman, & Ledford, 1995). For teams to be successful in these complex
activities, they require effective dynamics, which precipitates a research focus on deep-
level cognitive features that influence intra-team interaction and mutual understanding
(Kristof-Brown, Barrick, & Kay Stevens, 2005; Marks, Mathieu, & Zaccaro, 2001; Postrel,
*Correspondence should be addressed to Rebecca Mitchell, University of Newcastle, XXXXXX, XXXXX (e-mail: Rebecca.
mitchell@newcastle.edu.au) 2
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DOI:10.1111/j.2044-8325.2012.02059.x
1
JOOP 2059
B
Dispatch: 20.8.12 Journal: JOOP
CE: Priya Lakshmi
Journal Name Manuscript No.
Author Received: No. of pages: 23 PE: Pouline
2002). One research stream that has emerged as relevant to this aspect of effective
teamwork is person–environment fit (Kristof-Brown, Barrick, et al., 2005).
A key conceptualization of person–environment fit is supplementary fit, when both
the employee and environment possess the same or similar characteristics including
values, attitudes, personality traits, and goals (Kristof, 1996). Of these, value congruence
represents the similarity between individual values and those of the organization, group,
or supervisor (Chatman, 1989). Value congruence has been identified as a particularly
salient dimension of fit because values are relatively enduring and guide attitudes and
behaviour (Chatman, 1991; Schein, 1992).
Value congruence has been investigated at many different levels of analysis including
person–organization, person–job, person–supervisor, and person–group (Kristof, 1996).
A substantial volume of research has evidenced the benefits of value congruence, both
within teams and between individuals and their occupational environment at different
levels of analysis (Edwards & Cable, 2009; Kristof-Brown, Zimmerman, & Johnson, 2005).
This research indicates that value congruence reduces turnover and also increases
employee satisfaction and performance (Edwards & Cable, 2009; Hoffman & Woehr,
2006). While much extant work has focused on the impact of value congruence on
individual-level outcomes (Good & Nelson, 1971; Pelled, Eisenhardt, & Xin, 1999b), those
that have focused on group-level effects have also found evidence of a significant
relationship between value congruence and team dynamics (Barry & Stewart, 1997; Jehn,
Northcraft, & Neale, 1999). However, while workteams have become widely used in
organizations (Guzzo & Dickson, 1996), the investigation of person–group fit has
remained underexplored (Kristof-Brown, Zimmerman, et al., 2005). This study explores
value congruence in the context of person–group fit. When pertaining to workplace
teams, person–group value congruence suggests that each member’s values will interact
to affect team dynamics and task performance (Shin, 2004).
One aspect of value congruence, perceived value congruence, has been identified as a
particularly significant factor in determining group performance (Liao, Chuang, & Joshi,
2008). Perceived value congruence exists when members’ believe that they hold similar
or shared beliefs about issues relevant to the team’s task (Liao et al., 2008; Williams,
Parker, & Turner, 2007). This study investigates value congruence as a team-level
construct. We assume that perceived congruence is a unique construct that emerges at
the group level through the dynamic interaction of members and that this variable does
not exist in the same way at the individual level of analysis despite arising from individuals’
subjective perception of their own and others values (Klein & Kozlowski, 2000).
Perceived value congruence can be differentiated from related constructs, such as
cohesion and performance norms. Perceived value congruence relates to an awareness of
similarity regarding beliefs about what is important, while cohesion reflects an emotional
attachment to a group (Chang & Bordia, 2001). Previous research has supported the role
of perceived congruence in predicting cohesion, on the basis that perceived similarity
enhances attraction (Good & Nelson, 1971). Perceived congruence has also been
differentiated from work-related beliefs, with support for its role as a predictor of both
attitude towards individuals and tasks, as well as satisfaction and commitment (Resick,
Baltes, & Shantz, 2007).
The impact of perceived congruence on performance is argued on the basis that
perceptions of differences and similarities are closely linked member behaviour (Carless,
2005; Harrison, Price, Gavin, & Florey, 2002; Liao et al., 2008; Piasentin & Chapman,
2007; Williams et al., 2007). Previous authors have consistently emphasized that the
impact of comparative similarities and differences is based largely on perception (Jung &
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Avolio, 2000; Posner & Schmidt, 1993; Williams et al., 2007). In particular, perceptions of
attitudinal similarity, rather than actual congruence, have been found to better predict
group outcomes including member satisfaction and performance (Turban & Jones, 1988).
This study investigates the impact of perceived value congruence in health care teams,
in particular interprofessional health care teams, that is, teams composed of different
professions (Reeves et al., 2008). The potential benefit of teamwork, and the significant
challenge, is well evidenced in studies of teams in health care settings (Fay, Borrill, Amir,
Haward, & West, 2006; West et al., 2003). There are many advantages associated with
team approaches to health care delivery including enhanced organizational efficiency,
better patient and staff outcomes, and increased innovation (Basset & Bryson, 1989;
Younghusband, 1959). However, research also indicates that health care teams,
particularly interprofessional teams, are likely to engage in conflict and underperform
(Hudson, 2002; Zwarenstein & Reeves, 2000), and it has found that more than 70% of
medical errors are linked to dysfunctional team dynamics (Schaefer, Helmreich, &
Scheideggar, 1994). Even though perceived value congruence has been shown to be
highly influential in the dynamics and outcomes of teams, its role in health care teams
remains largely unexplored (Elfenbein & O’Reilly, 2007). Investigating perceived value
congruence is particularly important in health care organizations, as they continue to
prioritize value-based approaches to performance enhancement, including patient-
centred and interprofessional care (Blount, 2000; Centre for the Advancement of
Interprofessional Education, 2008; Lewin, Skea, Entwistle, Zwarenstein, & Dick, 2001).
This study investigates the role of perceived value congruence on innovation in health
care teams. Innovation is a neglected performance facet of health care teams (Fay et al.,
2006). Innovation in health care is being driven by both external government policy and
internal clinically led pressure to adopt evidence-based medicine (Fitzgerald, Ferlie, &
Hawkins, 2003), and it is a priority for clinicians, managers, and policy makers due to
consistent support for its positive impact on patient, staff, and organizational outcomes
(West et al., 2003). Health care organizations exist in an environment characterized by
continuous changes in medical information, technology, patterns of organization, and
delivery, which requires innovative use of resources and models of care (Cohen et al.,
2004). Innovation has been shown to significantly benefit health care organizations, for
example, through the use of electronic health records to support evidence-based practice
(Geibert, 2006) or the use of remote patient management (telehealth) technologies to
minimize emergency department and hospital admissions (Coye, Haselkorn, & DeMello,
2009). Innovation has therefore become a core capability for health care organizations
globally (Lansisalmi, Kivimaki, Aalto, & Ruoranen, 2006), indicating that processes that
contribute to innovation merit continued investigation.
In addition to investigating the main effect of perceived value congruence on
innovation, this study explores a contingent pathway between congruence and
innovation. Building on existing studies in social identity theory, a model of team
innovation is constructed in which the relationship between value congruence and
innovation is mediated by team identification and moderated by salience of profession.
We hypothesize that team identity mediates the relationship between value congruence
and innovation, and that this relationship is contingent on professional salience.
We seek to make a number of important contributions through this article by
responding to calls to investigate the role of perceived value congruence in work teams
(Chou, Wang, Wang, Huang, & Cheng, 2008). To the best of our knowledge, little prior
study has investigated the influence of perceived value congruence on innovation in
health care teams, and moreover, our study is one of very few to investigate value
Value congruence and team innovation 3
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congruence outside laboratory settings and one of the first attempts to investigate the
mediating and moderating mechanisms influencing its impact. The contribution of this
study is particularly important as perceptual factors underlying the impact of similarity
and dissimilarity have rarely been studied (Harrison et al., 2002), despite acknowledge-
ment that much relevant theory refers to perceptions of similarity as the major cause for
enhanced performance (Riordan, 2000).
Model development and hypotheses
The following sections present the rationale underlying our model development and
develop theoretical arguments supporting the proposed relationships. We discuss how
perceived value congruence is linked to team identity and, through this, innovation. We
also argue the moderating role of salience of profession in this relationship.
The connection between perceived value congruence and innovation is built on a
well-evidenced link between perceived similarity, trust, and attraction, frequently termed
the similarity–attraction paradigm (Edwards & Cable, 2009; Muchinsky & Monahan,
1987). Following from this paradigm, perceived similarity across members regarding task-
relevant values reflects a group-level dynamic that is likely to significantly impact on intra-
team attitudes and interaction patterns (Williams & O’Reilly, 1998).
Value congruence is argued to increase trust and cooperation between team members
(Tsui & O’Reilly, 1989), because people are more attracted to those who they perceive as
similar (Festinger, 1954; Williams & O’Reilly, 1998), and prefer to work with others who
share their values and perspective (Cable & Edwards, 2004). There is evidence that
attraction and trust, consequent to perceived congruence (Good & Nelson, 1971),
enhances team innovation in diverse teams through a number of mechanisms.
Attraction to, and trust between, team members increases the accuracy and frequency
of communication and leads individuals to search out more information from other team
members (Byrne, 1971). Such information sharing provides members with access to a
broader range of alternative perspectives (Carpenter, Geletkanycz, & Sanders, 2004). The
availability of alternative positions has been shown to enhance team ability to resist
conformity pressures (Nemeth, 1986; Nemeth, Connell, Rogers, & Brown, 2001; Nemeth
& Nemeth-Brown, 2003) and increases the tendency for conceptual differentiation and
divergent thinking (Gruenfeld, Thomas-Hunt, & Kim, 1998; Van Dyne & Saavedra, 1996),
all of which have been linked to the generation of new ideas (DeDreu & West, 2001).
Perceived similarity in values also increases the likelihood of innovative outcomes
because members are likely to feel more comfortable proposing novel ideas (Dose &
Klimoski, 1999). Furthermore, the perception of value congruence leads to a greater
acceptance of the validity of others opinions and leads members to be more open to
others’ opinions regarding alternative solutions and perspectives (Lott & Lott, 1961).
Members will be more likely to see others within the team as sources of informational
influence (Dose & Klimoski, 1999) and openness to alternative positions has been linked
to innovation in previous research (DeDreu & West, 2001; Tjosvold & Sun, 2003). This
leads to the first hypothesis.
Hypothesis 1: Perceived value congruence is positively related to innovation in teams.
Social identity theory suggests team identification as a mechanism explaining this
relationship. Team identification reflects the extent to which membership is valued and
contributes to a sense of self (Ashforth & Mael, 1989). Previous research indicates that
similarity facilitates a sense of belonging to a common group (Tajfel & Turner, 2001).
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Through a process of self-categorization (Turner, 1987), the categorization of oneself as
part of a specific social group, individual members may categorize themselves as part of
the team based on perceived similarity. This self-categorization can contribute to the
development of a collective team identity (Tyler & Blader, 2001). Under such
circumstances, members are more likely to perceive themselves as important participants
in the group’s work and start thinking of their contribution to the collective group goals
(Wang, Law, Hackett, Wang, & Chen, 2005).
Perceived value congruence provides a cognitive connection between the member
and team (Ellemers, Kortekaas, & Ouwerkerk, 1999) which has been linked to increased
team identification (Sleebos, Ellemers, & Gilder, 2006). Deep-level cognitive alignment
increases the likelihood that members will identify with the team as individuals tend to
identify with groups that provide them with a sense of compatibility and connection
(Pickett, Bonner, & Coleman, 2002). Finally, the perception of congruence has been
previously linked to increased team integration (O’Reilly, Caldwell, & Barnett, 1989), and
the promotion of interdependence and integration have, in turn, been connected to the
development of team identity (Gaertner, Mann, Murrell, & Dovidio, 1989; Homan et al.,
2008). This leads to the following hypothesis.
Hypothesis 2: Perceived value congruence will have a positive relationship with team identity.
Previous research provides continued support for the role of team identity in reducing
‘ingroup’ bias, and in extending attributes such as integrity, trustworthiness, and
supportiveness to traditional ‘outgroup’ members (Ashforth & Mael, 1989; van Dick, van
Knippenberg, Hagele, Guillaume, & Brodbeck, 2008). Members of teams with common
identity view one another as embodying the key attributes of the team (Ashforth & Mael,
1989). By perceiving themselves and others within a common framework, members
become more accepting of the diverse ideas and approaches of other professions (Mackie
& Goathals, 1987; Mitchell, Parker, & Giles, 2011). Members are therefore more likely to
engage in collaborative discussion and information sharing, and consider the alternative,
even opposing, suggestions of other professions from an openminded perspective (Wang,
Chen, Tjosvold, & Shi, 2010). Members are also motivated to challenge and debate
alternative positions, and justify, and seek justification for, conflicting ideas (Deshpande &
Zaltman, 1982; Maltz & Kohli, 1996).
Evidence also indicates that team identity influences team member motivation to
engage in thorough evaluation of others’ positions and propositions (Gaertner et al.,
1989; van Knippenberg, 1999). Individuals are more likely to engage in comprehensive
analyse and deliberate ingroup positions when compared with those of the outgroup (van
Knippenberg, 1999). By extending the ingroup category beyond traditional outgroup
boundaries, team identity increases the likelihood of a more systematic and analytical
evaluation of the diverse perspectives presented by different professions (Kane, Argote, &
Levine, 2005).
In summary, sharing a common team identity enhances the likelihood that members
will engage in information sharing and collaborative interaction, and that they will
constructively analyse the alternative positions presented by other members. These
behaviours have been linked to the generation of new ideas and innovation (DeDreu &
West, 2001; Miller, Burke, & Glick, 1998; Talaulicar, Grundei, & Werder, 2005). In
addition, the thorough analysis of a range of positions promotes the adoption of superior
over lesser choices (Kane et al., 2005) and prioritizes high quality over inferior arguments
(Gaertner et al., 1989), which, in turn, supports effective decision making. This leads to
the following hypotheses.
Value congruence and team innovation 5
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Hypothesis 3: Team identity will be positively related to innovation in interprofessional teams
and will mediate the positive relationship between leader inclusiveness and
innovation.
Despite the proposed link between team identity and performance, there is evidence
that sharing a common identity is unlikely to completely subsume professional
distinctions (Dovidio, Gaertner, & Saguy, 2008) particularly given then the strength and
priority of professional identity in health care environments (Cohen, 1981). This indicates
that professionally based differentiation may exist in interprofessional teams despite
strong collective identity and suggests the role of professional salience as a moderator of
team identity–performance relationship (Mitchell, Parker, & Giles, 2012).
Professional salience refers to circumstances under which professional identity
becomes the primary operational basis for categorizing the self and others (Randel, 2002).
When profession is a salient social category, team members are more aware of others
professional characteristics and differences associated with profession have a more
significant impact on team interaction (Dovidio et al., 2008; Gaertner & Dovidio, 2000).
When profession salience is strong within a team, members are likely to be more attentive
to the diverse perspectives and priorities of different professional groups, and more
focused on professionally based representation of these priorities in interprofessional
interactions (Lingard, Reznick, DeVito, & Espin, 2002; Timmermans, 2002). Under these
circumstances, team members become more aware of the broad-ranging ideas presented
by different members and more likely to attend to these differences in their discussions
(Phillips, 2003). In teams with strong team identity, this attention to diverse perspectives
enhances the beneficial impact of information sharing and collaboration, as members
work together to best utilize the range of knowledge-sources available to the team
(Mitchell et al., 2012). Therefore, in situations in which members are more aware of the
breadth and depth of knowledge available through their diverse membership, the link
between team identity and team innovation is likely to be strengthened. This leads to the
following hypotheses.
Hypothesis 4: Professional salience will moderate the relationship between team identity and
innovation, such that the positive relationship between team identity and
innovation will be stronger when professional salience is stronger.
Hypothesis 5: Professional salience will moderate the relationship between value congruence
and innovation, such that the positive relationship between value congruence
and innovation through team identity will be stronger when professional salience
is stronger.
Method
Procedure and sample
Targeted participants worked in teams in an acute care, hospital setting. A work team was
defined as two or more team members and a team leader who had shared goals and
pursued interdependent tasks towards their achievement (Kozlowski & Bell, 2003). To be
included as a participant team, the following criteria had to be met: (a) the team leader had
to complete the leader’s survey, which assessed team demographic characteristics and
innovation, and (b) team members had to complete the member’s survey which collected
data on team dynamics.
To minimize the risk of common method bias, we used two different questionnaires to
collect data (Podsakoff, MacKenzie, Lee, & Podsakoff, 2003). Data on the dependent
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variable, team innovation, were collected from the team leader. Data on independent
variables were collected from team members.
Questionnaires were distributed to 210 teams, and members and leaders of 75 teams
responded, representing a 36% response rate. Each team was assigned a unique code so
that member and leader response could be matched. As teams were invited to participate,
and responded, over an extended study period, an independent samples t-test was used to
test for significant mean differences between those teams responding early and those
teams who responded following further calls to participate. Analyses indicated no
significant mean differences existed between these categories of respondent teams on the
basis of team performance, team composition, and predictor variables.
To investigate sample representativeness, we compared specific attributes of our
sample with known population values. We used data on professional composition and
average employee age as the comparison attributes. We obtained data at country and
regional level for health care institutions (AIHW, 2006). For our study sample, the
average age of 41.8 years was close to the average age for health care professionals at a
national (42 years) and regional (43 years) level. In addition, the study sample showed
a very similar distribution of health care professional groups to the national and
regional level. Nurses comprised 54% of the study sample, and comprise 51.4% of
health care professionals employed nationally and 54% regionally. Medical practitioners
comprised 13.8% of the study sample, and comprise 13.7% of health care professionals
employed nationally and 14.6% regionally. Allied health professionals comprised 23.6%
of the study sample, and comprise 22% of health care professionals employed
nationally and 25.38% regionally. This provides support for the representativeness of
our sample.
The mean number of professions represented in groups was 4, with the majority of
teams comprising between 3 and 5 different professional groups. A broad range of health
care profession categories comprised team membership including nurse, dietician,
physiotherapist, social worker, medical practitioner, pharmacist, occupational therapist,
speech pathologist, radiographer, and psychologist. On average, members had been
working together as a team for approximately 2 years. The leaders of teams were made up
of different professions including nursing, medicine, physiotherapy, and social work. The
most frequent leader profession was nursing (48%).
We received an average of 4.6 responses per team, with an average of 52% responses
per team. Dawson’s (2003) selection rate formula was used to investigate whether the
number of responses within each team would allow group-level generalization. This
assesses the accuracy of incomplete group data in predicting true scores as a function of
number of responses per group (n) and group size (N) using the formula ([N–n]/Nn)
(Dawson, 2003). Scores from teams with a value of less than or equal to .32 are correlated
with true scores at .95 or higher (Dawson, 2003; Richter, West, van Dick, & Dawson,
2006). Based on this cut-off point, no teams were excluded as all were within the
acceptable parameter.
Measures
For hypotheses testing, the level of analysis was team level. In common with similar recent
research (Schaubroeck, Lam, & Cha, 2007), two intra-class correlation coefficients (ICCs)
are recommended for justifying aggregation of measures to group level (James, 1982).
ICC(1) indicates the ratio of between-group variance to total variance and ICC(2) indicates
the reliability of average team perceptions. Inter-rater agreement level was also used to
Value congruence and team innovation 7
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justify team-level aggregation (James, Demaree, & Wolf, 1984). All mean r
wg
values were
above the acceptable level of .70 (George, 1990).
Perceived value congruence
Three scale items were used to measure perceived value congruence developed from
previous research (Becker, Billings, Eveleth, & Gilbert, 1996; Brown & Trevino, 2006).
These scales directed respondents to rate values relating to the teams work-related
activities, for example, ‘Did members of the team have similar values regarding the team’s
work?’ The measure of perceived value congruence that we used in this study follows
previous research that directly asks individuals the extent to which they believe that they
are a good fit with a referent article, for example, organization, job, or group (e.g., Cable &
Judge, 1996; Resick et al., 2007). This approach focuses on the perceived match, which is
argued to relate more proximally to behaviours and attitudes than an objective match
(Cable & DeRue, 2002). Although some studies utilize a measure of perceived fit against
broad value elements, we followed previous studies that assessed value similarity on the
basis of a specified referent (Cable & Judge, 1996; Resick et al., 2007; Saks & Ashforth,
1997). This method of assessing value congruence involves asking participants to assess
the extent to which the referent team/organization holds values similar to their own (Saks
& Ashforth, 1997). Our measure used a team referent, which aimed to increase the
likelihood that members would respond based on their perception of similarity across the
range of values that were held as specifically relevant to the team’s task. This perception of
similarity is argued to be relatively cognitively accessible to participants (Judge & Cable,
1997) and to have a significant influence on their attitude towards the team and its work
(Cable & DeRue, 2002), and is also particularly important in an en vironment such as health
care, in which shared task-related values, such as interprofessional and patient
centredness, are increasingly utilized as a mechanism to bridge professional divides
(Berntsen, 2006; Loutzenhiser & Hadjistavropoulos, 2008). The alpha coefficient for this
measure was 0.80, ICC(1) was .20, F(74, 270) =3.64, p=.00, and ICC(2) was .54. The
mean r
wg
for perceived value congruence was .70.
Team identity
A 3-item scale was used to assess team identity adapted from past research (Van Der Vegt &
Bunderson, 2005), and asked, for example, whether members ‘identify strongly with the
team?’ The alpha coefficient for this measure was 0.85, ICC(1) was .16, F(74,
270) =31.55, p=.01, and ICC(2) was .46. The ICC(1) result for team identity was over
the median of .12 reported by James (1982). The ICC(2) result was lower than expected
but comparable to similar studies (Srivastava, Bartol, & Locke, 2006; Walker, Smither, &
Waldman, 2008). It can be argued that as ICC(2) is dependent on ICC(1) and team size, the
relative small sample team size may contribute to the lower ICC(2) results (Bliese, 1998).
George (1990) argued that large differences are less likely to be found when investigating
teams within the same organization and this may also account for the small ICC(2) results.
The mean r
wg
for team identity was .74, and provides justification for the aggregation of
our data to team level.
Salience of profession
Three scale items were used to measure salience of profession taken from previous
research (Randel, 2002), for example, participants were asked to rate the extent to which
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they agreed with the following statement: ‘When people ask me about who is in the team,
I initially think of describing team members in terms of their profession’. The alpha
coefficient for this measure was 0.73, ICC(1) was .17, F(74, 270) =1.55, p=.01, and ICC
(2) was .48. The mean r
wg
for salience of profession was .82. We chose to treat
professional salience as a group construct for two reasons. First, our Fratio was significant
which supports our decision to aggregate individual responses, and second, the r
wg
results were satisfactory.
Team innovation
The dependent variable, team innovation, was measured by the team leader using a
separate questionnaire to the team member survey. Three items measured team
innovation based on previously validated measures (West & Anderson, 1996), for
example, ‘To what extent was this team innovative?’ and ‘To what extent does this team
produce new ideas and introduce specific changes?’ The alpha coefficient for this measure
was 0.94.
Control variables
Following previous research, we controlled for team size and team job-related diversity
(Hobman & Bordia, 2006; Tushman & Nadler, 1978), which have both been linked to team
performance. To assess team size, respondent leaders were asked to indicate the number
of team members. To assess team diversity, respondent leaders were asked to indicate the
number of different professions represented on the team. Diversity was measured using
Blau’s (1977) index of heterogeneity: (1-ΣPi
2
), where Pi is the proportion of top managers
in ith category. Blau’s (1977) index has widespread usage as a measure of group diversity,
including national diversity (Kilduff, Angelmar, & Mehra, 2000; Pelled, Eisenhardt, & Xin,
1999a). A higher score on Blau’s index indicates greater professional diversity. We also
controlled for professional identification. Two items measured professional identification
based on previously validated measures (Bartels, Pruyn, & Jong, 2009; van Knippenberg,
van Knippenberg, Monden, & de Lima, 2002), for example, ‘I identify strongly with my
professional group’. The alpha coefficient for this measure was 0.91, ICC(1) for
professional identification was .13, F(74, 270) =3.36, p=.00, and ICC(2) was .42.
Analysis and results
Table 1 shows the means, standard deviations (SDs), and correlations among the
variables.
Pattern coefficient matrices are argued to provide a sound basis for evaluating the
extent to which measured constructs are empirically distinct (Thompson, 1997). Table 2
shows the factor coefficients for each of the constructs measured in this study and shows
that all items are correlated more highly within each construct than between constructs.
In addition, all coefficients are greater than .6. These coefficients indicate sufficient
homogeneity within scales and heterogeneity between scales, to support claims of
discriminant validity (Thompson, 1997).
Discriminant validity was further evidenced by the fact that the square root of the
average variance extracted (AVE) for each of the variables was higher than its correlations
with other variables, as shown in Table 1 (Fornell & Larcker, 1981).
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Given the moderately high correlation between value congruence and team identity,
additional checks were undertaken to assess the threat of multicollinearity. In particular,
variance inflation factor (VIF) was generated when both of these predictors were
incorporated into regression equations during hypothesis testing. Stevens (1992) noted
that VIF should be below 10. All VIFs were below 1.8 when value congruence and team
identity were both entered as predictors in the regression equation which indicates that
multicollinearity is not likely to be a significant problem in this study.
This study employed partial least squares (PLS) structural equation modelling (SEM) to
analyse data. PLS is a second-generation modelling technique is increasingly utilized in
health, engineering chemistry, and organizational stud y research (Sosik, Kahai, & Piovoso,
2009). PLS was chosen for this data analysis as it is a robust causal modelling technique that
aims to maximize the dependent construct variance (Henseler, Ringle, & Sinkovics, 2009).
PLS SEM’s primary objective is to maximize explained variance in the dependent variable,
as well as evaluate data utility through assessment of the measurement model (Hair,
Ringle, & Sarstedt, 2011). PLS-SEM works on the basis of a less restrictive set of
assumptions than covariance-based SEM, for example, PLS-SEM uses non-parametric
inference methods (in this case bootstrapping) and is relatively free of distributional
Table 1. Means, standard deviations, and correlations (N=75 teams)
MSD 123 4 5 67
1 Team size 8.82 7.63
2 Team diversity .51 0.15 .13
3 Professional identification 5.72 0.68 .08 .01 .89
a
4 Value congruence 4.51 0.89 .09 .15 .39** .85
5 Team identification 5.60 0.70 .08 .08 .49** .66** .88
6 Salience of profession 4.06 0.93 .07 .00 .09 .08 .02 .82
7 Innovation 5.14 1.05 .03 .04 .27* .40** .38** .07 .95
Note. *p<.05, **p<.01.
a
Boldface numerals on the diagonal represent the square root of the average variance extracted.
Table 2. Factor coefficients (N=75 teams)
Value congruence Team identification Salience of profession Innovation
Value congruence 1 .74 .42 .09 .16
Value congruence 2 .80 .09 .10 .22
Value congruence 3 .69 .39 .09 .17
Team identification 1 .38 .79 .07 .26
Team identification 2 .48 .71 .00 .13
Team identification 3 .01 .87 .02 .17
Salience of profession 1 .16 .01 .82 .17
Salience of profession 2 .28 .18 .81 .15
Salience of profession 3 .02 .14 .79 .05
Innovation 1 .12 .25 .04 .91
Innovation 2 .13 .22 .02 .93
Innovation 3 .18 .00 .06 .92
Note. Boldface values are standardized parameter estimates.
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assumptions (Squillacciotti, 2010). In addition, and of relevance for the current study, PLS
modelling has been shown to be a more useful analytical approach when independent
variables may be correlated. Under these circumstances, multiple regression has been
demonstrated to produce coefficient values that are significantly different to true values,
while PLS generates more accurate coefficients (Sosik et al., 2009). While PLS-SEM has
significant advantages, it also has some disadvantages. It provides no adequate global
measure of goodness of fit for investigated models (Hair, Ringle, et al., 2011). There have
also been some concerns raised that PLS parameter estimates are not optimal with regard
to bias; however, simulation studies indicates that the differences between CB- and PLS-
SEM are at very low levels (Reinartz, Haenlein, & Henseler, 2009).
Of particular relevance for this study, PLS-SEM can be used to analyse data from small
samples, ranging from 30 observations (Sosik et al., 2009). Studies that have rigourously
evaluated the performance of PLS-SEM when sample sizes are small have showed that
PLS-SEM is able to achieve high levels of power, when compared with covariance-based
SEM, when sample sizes are small (Hair, Sarstedt, Ringle, & Mena, 2011). We utilized
SmartPLS software (Ringle, Wende, & Will, 2005).
PLS provides parameter estimates to enable assessment of the structural component of
the research model. Bootstrapping was used to generate t-test statistics to evaluate the
statistical significance of the path coefficients. Bootstrapping involves generating a large
number of random samples by sampling with replacement from the original data (Sosik
et al., 2009). Following Chin (1998), we ran 1,000 bootstrap samples.
Figure 1 depicts the results of PLS analysis. Prior to the inclusion of team identity in the
PLS model, the PLS analysis yielded a significant path coefficient for the impact of value
congruence on innovation (b=.37, t=2.37, p=.02) supporting hypothesis 1. The PLS
full model analysis revealed a significant path coefficient for the impact of value
congruence on team identity (b=.63, t=6.68, p=.00) supporting hypothesis 2, and a
significant path coefficient for team identity regressed on team innovation (b=.39,
t=3.03, p=.00). The path coefficient for the impact of value congruence on innovation
was not significant in the full model (b=.09, t=.51, p=.61). We used an approach
developed by Preacher and Hayes (2008) to generate bias corrected bootstrapped
confidence intervals (CIs) for the indirect of team identity as mediator of the path between
value congruence and innovation (MacKinnon, Lockwood, & Williams, 2004). In
confirmation of hypotheses 3, analysis generated CIs that did not include zero (95% CI:
.04–.43).
To test hypotheses 4, a standardized cross-product interaction construct was
computed and included in the model as suggested for PLS analysis (Chin, Marcolin, &
Newsted, 2003). The results show that professional salience moderated the impact of
team identity on innovation supporting hypothesis 4. The PLS analysis revealed a
significant path coefficient for the interaction variable regressed on innovation (b=.27,
t=2.65, p=.02).
To explore the nature of the moderating effect further, we used simple slopes
computations and graphed the interactions using high (1 SD above the mean) and low
(1 SD below the mean) levels of the moderator. These analyses revealed that team identity
was strongly associated with performance when professional salience was high (simple
slope =1.09, t=4.49, p=.00) and was less strongly, but not significantly, related to
performance when professional salience was at a low level (simple slope =0.32, t=1.81,
p=.08), as depicted in Figure 2. These results provide support for hypothesis 4 by
indicating that team identity impacts performance more strongly when professional
salience is high.
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Hypothesis 5 posited that the indirect effect of value congruence on innovation via
team identity depends on professional salience levels. To test moderated mediation, the
data were investigated to assess whether the strength of the mediation via team identity
differs across two levels (high and low) of the moderator, professional salience (Preacher,
Rucker, & Hayes, 2007). Moderated mediation is evidenced when the conditional indirect
effect of leader inclusiveness on performance via team identity differs in strength across
low and high levels of professional salience. Preacher et al.’s (2007) statist ical significance
test was used to analyse the data. This applies Aroian’s (1947) exact standard error for
indirect effects to compute a zstatistic for the conditional indirect effect. Again, high and
low professional salience was operationalized as 1 SD above and below the mean
respectively. The results of this analysis indicate that the relationship between leader
inclusiveness and innovation via team identity was weaker when professional salience
was low (z=0.11, p=.44) and stronger when professional salience was high (z=2.49,
Value
Congruence
Professional
Salience
Performance
Team
Identity
= .63**
= .39**
= .27*
Professional
Identification
Team Size
Professional
Diversity
= –.01
= .02
= .09
Figure 1. Model of value congruence effects.
2
2.5
3
3.5
4
4.5
5
5.5
6
Low Team
Identity
High Team
Identity
Innovation
High Professional
Salience
Low Professional
Salience
Figure 2. Moderating effect of professional salience on team identity’s impact on innovation.
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p=.01). This analysis supports hypothesis 5. To investigate this effect further, an
extension of the Johnson–Neyman technique to moderated mediation was applied
(Preacher et al., 2007). This technique involves testing the significance of the indirect
effect of leader inclusiveness at a range of values of professional salience until the value is
found for which the indirect effect becomes significant (a=0.05). Table 3 shows that at
professional salience values above 3.9, the mediating effect of team identity is significant.
At professional salience levels of 3.9 and above, the mediating role of team identity is
significant and becomes stronger. Below this level of professional salience, the mediating
effect of team identity weakens and is not significant.
We also generated a bootstrap-based CI for the specific indirect effect at the mean
value of professional salience. The 95% CI did not include zero (95% CI: .02–.52),
supporting our moderated mediation hypothesis.
Unlike other SEM techniques, PLS does not test for model fit (Fornell & Bookstein,
1982); however, the r
2
statistics has been argued to provide an approximation of the
models utility by depicting the extent to which the predictors account for variance in the
dependent construct. PLS analysis revealed that the overall model explained 32% of the
variance in performance, which can be interpreted as an indicator of moderate fit (Chin,
1998).
To further investigate the quality of the structural model, we chose to assess the
models capacity to predict performance. To assess predictive relevance, we used PLS-SEM
to generate the Stone–Geisser criterion (Q2) with an omission distance of 7. Analysis
resulted in a Stone–Geisser criterion Q2 value of 0.29, which is substantially above the
threshold value of zero, and which indicates the model’s predictive relevance (Henseler
et al., 2009). This supports our claim that value congruence is a valuable predictor of team
innovation and also supports the utility of the pathways that we have investigated.
Supplemental analysis
As the number of teams was relatively small, particularlyfor testing moderating effects, we
followed the procedureto detect potential outliers recommended by Fidell and Tabachnick
(2003). For each team, we calculatedthe Mahalanobis distance based on predictor variables
and determined the probability of each distance. The maximum Mahalanobis distance was
14.62, which is well below the critical value of 20.52 (a=.001) for our study (Fidell &
Tabachnick, 2003). This indicates that outliers among the data points are not a significant
issue in this study and provides support for the robustness of our findings.
Discussion
The purpose of this research was to investigate the consequences of value congruence in
health care teams. To achieve this objective, this study investigated the relationship
Table 3. Conditional indirect effect at range of values of professional salience
Professional salience value Zstatistic Significance (p)
2.5 0.15 .88
3.1 0.66 .51
3.9 1.96 .05
4.6 2.42 .02
5.4 2.52 .01
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between perceived value congruence and innovation, as well as a contingent explanatory
pathway. The results provide support for a positive relationship between the perception
of value congruity and innovation mediated by team identification. Results also support a
moderated–mediated relationship in which the mediating effect of team identity is
dependent on professional salience.
Theoretical contributions
We attempt to make several primary theoretical contributions to the literature. An
important contribution of this article lies in the application of perc eived value congruence
in health care teams. Although health care teams, particularly those of professionally
diverse composition, have been extensively studied over the last decade, the mechanisms
explaining innovation in such teams remain underexplored, as do the factors influencing
these mechanisms (Zwarenstein & Reeves, 2000). Health care services are increasingly
structured around team activities as opposed to individual responsibilities (Meads,
Ashcroft, Barr, Scott, & Wild, 2005). In this new environment, clinical professions are
required to blur professional boundaries, decrease their historical territoriality, and focus
on shared values, such as patient-centred, interprofessional, and integrated care (Baldwin,
2007; Blount, 2000; Butt, Marke-Reid & Browne, 2008; Health Canada, 2004). In this
study, we took the initiative by exploring the contingent role of value congruence to
provide a clearer understanding how perceptions of deep-level congruity influence
innovation in a sample of professionally diverse teams.
The findings indicate that common group identity is a critical mechanism explaining
team innovation. When members perceive that the team shares values that are central to
their task, their perceptions of cooperation is enhanced and the importance of each
member’s contributions to the team’s goal is reinforced. This builds commitment and
develops a shared team identity, which stimulates collaborati ve interpersonal interactions
and constructive analysis of member’s diverse perspectives. Previous studies have linked
social identity to professions, and this has been argued as a critical source of
interprofessional conflict; however, the current study is one of the first to provide
confirmatory evidence supporting the valuable role of common identity in interprofes-
sional teams.
A key contribution of this study relates to the finding that professional salience
moderates the mediated relationship between value congruence and innovation. Our
results suggest that although value congruence and team identity provide a context that
motivates members to engage in information sharing and constructive evaluation, this
contributes to team performance only when members are strongly focused on profession
as a source of differentiation between each other. When professional salience is strong,
members are more likely to articulate, and attend to, the positions and perspectives of
their different professions, which enhance the impact of team identity in promoting
collaborative interaction and analysis. When professional salience is weak, the mediating
impact of team identity is not significant. This is in alignment with previous research,
which suggests that without a focus on knowledge differences, collective approaches
may increase the risk of conformity and premature consensus (Stasser & Titus, 2003;
Turner, Pratkanis, Probasco, & Leve, 1992).
The finding that value congruence increases innovation under conditions of high
professional salience significantly enhances our understanding of the contingent nature of
the value congruence–innovation relationship. While value congruence provides a
context that encourages the development of team identification thereby enhancing
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knowledge sharing and constructive analysis, this strongly contributes to the generation
of new ideas when members are focused on profession as a salient characteristic. This
suggests that professional salience stimulates members’ awareness of the diverse
knowledge assets that stem from professional expertise and prompts the use of a broader
array of perspectives which stimulates novel connections and ideas.
An important contribution of this research lies in its focus on innovation. While much
of the limited research into interprofessional teams has focused on quality, much less has
aimed to understanding the factors that influence whether teams are innovative, that is,
whether teams lead to new ideas and changes (Lansisalmi et al., 2006). Like many
industries, the health care sector is undergoing major changes, simultaneously dealing
with increases in multiple traumas and acuity (Lansisalmi et al., 2006), and important
structural changes (Ferlie, Fitzgerald, McGivern, Dopson, & Exworthy, 2010). Innovation
in health care settings is a growing priority in recognition of both the dynamic health
policy and operational environment, and empirical research linking innovation to positive
organizational and patient outcomes (West et al., 2003).
The findings also have implications for future modelling of the impact of perceived fit
on group performance. Previous research has shown that value congruence is antecedent
to group cohesion and group attitudes to work-related tasks (Good & Nelson, 1971;
Kristof-Brown et al., 2005). This study builds on these previous findings by indicating an
additional mediating mechanism linking value congruence to innovation. It also suggests a
moderating variable that may strengthen the link between cohesion and attitudes to
performance, particularly in tasks requiring innovation. In particular, while cohesion has
been found to potentially increase pressure to conform (Rovio, Eskola, Kozub, Duda, &
Lintunen, 2009), professional salience may act to minimize this risk of conformity by
drawing attention to job-related differences.
Practical contributions
Our findings have significant practical implications. For leaders of interprofessional
teams, the data reinforce the merit of utilizing some of the strategies shown to strengthen
perceptions of value congruence. For example, the development of a collective vision
through transformational leadership has been shown to enhance perception of shared
values (Kark, Shamir, & Chen, 2003). The data reinforce the merit of explicit emphasis on
shared notions of patient centredness and professionalism through interprofessional
education, which have been shown to enhance interprofessional collaboration (McNair,
2005; Reeves et al., 2008), and likely do so, in part, through the perception of common
values (Reeves, Goldman, & Oandasan, 2007). In addition, leaders tasked with innovation
are well advised to bring professional diversity to the attention of members and heighten
awareness of the associated knowledge differences, within an overarching framework of
shared values.
This study has a number of limitations. The sample size may have decreased the
likelihood that predicted relationships were identified, and this is compounded by our
investigation of moderating effects (Cohen, 1988). However, all our hypotheses were
supported and we utilized PLS-SEM, a method that has been demonstrated as robust to
smaller sample sizes (Ringle, Sarstedt, & Straub, 2012).
Our focus on interprofessional teams may limit the generalizability of the findings to
other forms of diversity. Writing on the sociology of the professions indicates that
concepts of identity may exist more intensely in interprofessional groups that with other
forms of job-related diversity (Abbott, 1988; Dingwall & Lewis, 1983). This recommends
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future study across a number of bio-demographic and occupational domains and also
suggests the merit of investigating these relationships in more homogeneous groups. The
measurement of our independent constructs represents another limitation. The ICC(2)
results were low for some constructs, which may have resulted in undetected or weaker
relationships (Bliese, 1998, 2000). Thus, it may be possible that the moderating
relationships detected would have been higher if the mean levels of team identification or
salience of profession had demonstrated greater variation across groups. This suggests
that future research would benefit from study of larger team sizes, which is likely to
generate higher ICC(2) values (Bliese, 1998), or from a wider range of organizations.
While there is significant evidence that our variable measures were valid, future research
could use more robust, extended scales to ensure stability in construct assessment.
While not a limitation, this study investigated perceived value congruence. Following
previous research in this area, we chose to focus on perceptions of value congruence on
the basis that perceptions of differences and similarities have been found to be effective
predictors of attitude and behaviour (Jehn et al., 1999). In particular, perceptions of
attitudinal similarity, rather than actual similarity, are better predictors of both satisfaction
and performance (Turban & Jones, 1988). However, molar approaches, which focus on
perception of similarity, may reflect an effective response to the referent team rather than
an assessment of fit (Edwards, Cable, Williamson, Lambert, & Shipp, 2006). This suggests
that future research should utilize a method of subjective and objective fit. In addition, our
measures focus on values relevant to the team’s task, rather than asking members to assess
their similarity on specified general values. While this allowed us to tap task-relevant
perceptions, it also limited our ability to identify any variance in perceived or actual
congruence across different value dimensions. This suggests that future research could
usefully investigate the impact of perceptions related to specified value, both general and
job related.
Despite these limitations, the findings reported here suggest that there is important
research potential in investigating the role of perceived value congruence in health care
teams, particularly those of diverse composition. This study also indicates that our
understanding of the impact of value congruence is significantly enhanced through social
identity theory and reinforces the merit of investigating relationship contingencies.
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Author Query Form
Journal: JOOP
Article: 2059
Dear Author,
During the copy-editing of your paper, the following queries arose. Please respond to
these by marking up your proofs with the necessary changes/additions. Please write your
answers on the query sheet if there is insufficient space on the page proofs. Please write
clearly and follow the conventions shown on the attached corrections sheet. If returning
the proof by fax do not write too close to the paper’s edge. Please remember that illegible
mark-ups may delay publication.
Many thanks for your assistance.
Query reference Query Remarks
1 AUTHOR: Please provide the city and country
details for all the author affiliations.
2 AUTHOR: Please provide complete address
details for the corresponding author.
3 AUTHOR: Please provide the ‘doi’ for all the
journal type references.
4 AUTHOR: It is the Journal style to list all
author names if there are seven authors. If
there are more than seven authors, the
journal style is to list the names of the first
six authors followed by three dots (…) and
then to include the last author name. Please
amend the author names in the Reference list
accordingly.
5 AUTHOR: Please provide the volume num-
ber, page range for reference Dawson (2003).
6 AUTHOR: Please provide the page range for
reference Gruenfeld et al. (1998).
7 AUTHOR: Please provide the volume number
for reference Hair et al. (2011).
8 AUTHOR: Please provide the page range for
reference Lewin et al. (2001).
9 AUTHOR: Please provide the volume number
for reference Mitchell et al. (2012).
10 AUTHOR: Please provide the page range for
reference Nemeth (1986).
11 AUTHOR: References Pelled et al. (1999a)
and (1999b) seems to be duplicate except
for the page range. Please check and correct.
12 AUTHOR: Please provide the page range for
reference Reeves et al. (2008).
13 AUTHOR: Please provide the page range for
reference Ringle et al. (2012).
14 AUTHOR: Please provide the editor names,
publisher location for reference Stasser and
Titus (2003).
15 AUTHOR: Please provide the publisher loca-
tion for reference Tajfel and Turner (2001).
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