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A Systematic Review of the Factor Structure of Anxiety Sensitivity Among Children: Current Status and Recommendations for Future Directions

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Background Child anxiety sensitivity (AS) is measured almost exclusively using the Childhood Anxiety Sensitivity Index (CASI). Yet, in the context of significant discrepancies regarding the CASI factors and how they are scored and reported, it remains unclear whether the CASI reliably and validly assesses the purported multifactorial AS construct. Objective This paper will: (1) provide a comprehensive summary of previous CASI factor analyses by which these factor structures were identified, (2) evaluate evidence regarding the multifactorial nature of AS in youth, and (3) discuss potential directions for continued research in this area. Method In a PsycInfo search, peer-reviewed studies published between 1991 and 2018 were identified for inclusion if they examined the factor structure of the CASI or reported data on the CASI subscales as administered to child participants. Results Findings from the 50 studies reviewed suggested that (1) the 18-item CASI does not consistently yield internally reliable assessments of specific AS facets, (2) significant discrepancies exist regarding the CASI subscales identified, the items comprising these scales, and their predictive validity in terms of anxiety, and (3) alternatives to assess the multifactorial construct of AS in youth do exist, but they have not been systematically examined in the literature. Conclusions Directions for future study include further examining expanded scales for AS in youth, continued study of shorter scales assessing more consistently reliable AS content, and evaluating the utility of an expanded response scale for the CASI.
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Vol.:(0123456789)
Child & Youth Care Forum (2019) 48:603–632
https://doi.org/10.1007/s10566-019-09502-y
1 3
REVIEW
A Systematic Review oftheFactor Structure
ofAnxiety Sensitivity Among Children: Current Status
andRecommendations forFuture Directions
SarahE.Francis1 · ValerieA.Noël2 · StephanieL.Ryan3
Published online: 9 April 2019
© Springer Science+Business Media, LLC, part of Springer Nature 2019
Abstract
Background Child anxiety sensitivity (AS) is measured almost exclusively using the
Childhood Anxiety Sensitivity Index (CASI). Yet, in the context of significant discrepan-
cies regarding the CASI factors and how they are scored and reported, it remains unclear
whether the CASI reliably and validly assesses the purported multifactorial AS construct.
Objective This paper will: (1) provide a comprehensive summary of previous CASI factor
analyses by which these factor structures were identified, (2) evaluate evidence regarding
the multifactorial nature of AS in youth, and (3) discuss potential directions for continued
research in this area.
Method In a PsycInfo search, peer-reviewed studies published between 1991 and 2018
were identified for inclusion if they examined the factor structure of the CASI or reported
data on the CASI subscales as administered to child participants.
Results Findings from the 50 studies reviewed suggested that (1) the 18-item CASI does
not consistently yield internally reliable assessments of specific AS facets, (2) significant
discrepancies exist regarding the CASI subscales identified, the items comprising these
scales, and their predictive validity in terms of anxiety, and (3) alternatives to assess the
multifactorial construct of AS in youth do exist, but they have not been systematically
examined in the literature.
Conclusions Directions for future study include further examining expanded scales for AS
in youth, continued study of shorter scales assessing more consistently reliable AS content,
and evaluating the utility of an expanded response scale for the CASI.
Keywords Anxiety sensitivity· Child· Childhood Anxiety Sensitivity Index· Subscale·
Factor structure
* Sarah E. Francis
sarah.francis@utoledo.edu
1 Department ofPsychology, University ofToledo, MS #948, 2801 W. Bancroft Street, Toledo,
OH43606, USA
2 Westat, Lebanon, NH, USA
3 Department ofPsychology, York University, Toronto, Canada
Content courtesy of Springer Nature, terms of use apply. Rights reserved.
... Certain items can also be summed to create the following subscales: Fear of Cardiovascular Symptoms (α = 0.88), Fear of Respiratory Symptoms (α = 0.88), Fear of Cognitive Dyscontrol (α = 0.81), and Fear of Publicly Observable Anxiety Reactions (α = 0.85) (Muris et al., 2008). (Francis et al., 2019a(Francis et al., , 2019b. The CASI-R also has good internal consistency (α = 0.90), good reliability (α > 0.70), and convergent validity (r = 0.29, 0.38, 0.47 with significance at α = 0.05, 0.01, and 0.001) in adolescent samples (Francis et al., 2019a(Francis et al., , 2019b. ...
... (Francis et al., 2019a(Francis et al., , 2019b. The CASI-R also has good internal consistency (α = 0.90), good reliability (α > 0.70), and convergent validity (r = 0.29, 0.38, 0.47 with significance at α = 0.05, 0.01, and 0.001) in adolescent samples (Francis et al., 2019a(Francis et al., , 2019b. ...
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... For this purpose, this study aims to investigate the psychometric properties of the Childhood Anxiety Sensitivity Index, which was designed and presented by Silverman et al. (20). The most common structure of the Childhood Anxiety Sensitivity Index is a three-factor model consisting of physical, psychological, and social concerns (21)(22). The results of the Widenfelt et al.'s research (23) showed the internal consistency and appropriate validity of the Childhood Anxiety Sensitivity Index. ...
... In the Widenfelt et al.'s study (23), exploratory and confirmatory factor analysis was performed by comparing different models, and the model with 3 lower order factors found in previous studies showed an acceptable fit. Also, the findings of the present study are consistent with the results of the Francis et al.'s systematic review (22), which showed that published factor analytic studies mostly support a three-factor model (physical, social, and psychological concerns). In terms of convergent validity, the findings indicate that this scale has a positive and significant correlation with the Multidimensional anxiety scale for children. ...
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