Mark Snyder’s research while affiliated with University of Minnesota, Duluth and other places

People typically enter their social interactions with preconceived beliefs and expectations about how other people will act and they often use these beliefs as guides for their own actions with these others. These actions, in turn, may prompt their interaction partners to behave in ways that confirm the initial beliefs. This phenomenon, in which belief creates reality, has been demonstrated for a wide variety of expectations. In this article, we review the extensive research literature, identifying the moderators and mediators that explain when and why self-fulfilling prophecies occur, as well as the practical and theoretical implications of these effects.

How does a major natural disaster relate to individuals’ orientation towards society? We collected repeated cross‐sectional surveys before (n = 644) and after the 2010 Chile earthquake (n = 1,389) to examine levels of national identity, prosocial values, helping motivations, and prosocial behaviours in the context of such a calamitous societal event. Our research questions, derived from the literature on helping in times of crisis, considered how natural disasters may implicate identity and prosociality, as well as how identity, prosocial values, and motivations are linked to prosocial action after a disaster. Higher levels of national identity, helping motivations, and disaster‐related helping were found after the earthquake, suggesting that in the aftermath of a disaster, people unite under a common national identity and are motivated to take action related to disaster relief. National identity and prosocial values were closely linked to helping after the earthquake, but specific helping motivations rarely predicted prosocial behaviours. Additionally, proximity to the epicentre was related to higher levels of national identity and participation in reconstruction efforts. These findings contribute to our understanding of people's responses to natural disasters and suggest ways of encouraging prosocial behaviour in the aftermath of unexpected tragic events.

Research on helping behavior distinguishes between giving recipients the tools to solve problems for themselves (autonomy-oriented help) and direct solutions not requiring recipients’ involvement (dependency-oriented help). Across three studies, we examined whether individuals can be characterized by dispositional propensities toward offering autonomy-oriented and/or dependency-oriented help. In initial studies, factor analyses revealed the two hypothesized Helping Orientations Inventory scales along with an additional scale capturing opposition to helping, all acceptable in internal consistency and test-retest reliability (Study 1a – 1c). Next, we found that the three scales related in distinct ways to constructs from the intergroup (e.g., social dominance orientation) and interpersonal (e.g., empathic concern) helping literatures (Study 1d and 1e). Additionally, these orientations predicted satisfaction with volunteer behavior (Study 2) and interest in future volunteering (Study 3). Overall, people vary in their helping orientations, and these orientations implicate a range of variables relevant to intergroup and interpersonal helping.

Developing and maintaining a user base that actively contributes to an online community is often essential to a website's success. For many online communities, developing such a user-base can be challenge for web designers. Working from a functionalist perceptive, two studies explored how the individual difference of interdependent self-construal was related to participation and engagement in the online community MovieLens.org. In the first study, we found that those individuals high in interdependent self-construal were particularly unlikely to contribute to the website. In an attempt to increase the online engagement of this type of user, we then created an interactive web feature that tapped into the social motives of those high in interdependent self-construal. This feature allows users to create Top Five movie lists that can be shared with other users. In the second study, we found that interdependent self-construal was associated with more use of the Top Five lists feature, that using this feature was associated with more interest in seeing others' lists, which in turn predicted more interest in MovieLens. Implications for web design and psychological theory are discussed.

Because volunteerism is a planned activity that unfolds over time, people who more frequently focus on the future might also be more likely to initiate volunteerism and sustain it over time. Using longitudinal (Study 1) and experimental (Study 2) paradigms, we investigated whether time perspective, and in particular a person's orientation toward the future, is related to volunteers' beliefs and behavior. In Study 1, a person's dispositional level of future time perspective was closely linked to volunteer beliefs and behavior. In Study 2, people who wrote about the future reported higher intentions to volunteer, and this was particularly true for infrequent volunteers and those with lower levels of dispositional future time perspective. Across two studies, we found evidence that future time perspective, whether a chronic disposition or a pattern of thought elicited by someone else, is linked to volunteer beliefs and behavior.

Volunteerism and community involvement have been demonstrated to offer benefits both to communities and to volunteers themselves. However, not every method to encourage these behaviors is equally effective in producing committed volunteers. Drawing on relevant theoretical and empirical literatures, we identify features of efforts that are likely to produce intrinsically motivated other-oriented volunteers and those that may produce extrinsically motivated self-oriented volunteers. In particular, we explore ways to socialize young people to help and ways to build a sense of community focused on particular issues. We also examine requirements for community service and other approaches that highlight self-oriented benefits that volunteers may obtain. Finally, we return to a focus on the importance of intrinsic motivation for promoting sustained involvement in volunteers, even as we acknowledge that volunteers who come with extrinsic or self-oriented reasons can still offer much to communities and can be satisfied when their activities match their motivations.