Article2000

Validity and factorial invariance of the Social Physique Anxiety Scale

142 citations0/0 files storedMedicine & Science in Sports & Exercise

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Psychometric Methodologies and Testing Eating Disorders and Behaviors Anxiety, Depression, Psychometrics, Treatment, Cognitive Processes

Abstract

PURPOSE: The present study 1) tested whether the two-factor model to the 12-item Social Physique Anxiety Scale (SPAS) was substantively meaningful or a methodological artifact representing positively and negatively worded items, 2) assessed the factorial validity of the nine-item unidimensional model to the SPAS, 3) examined whether modifying the number of SPAS items would improve the factorial validity. 4) evaluated the factorial invariance of the SPAS across gender, and 5) explored the construct validity of SPAS scores. METHODS: Female (N = 146) and male (N = 166) college students (22.2 +/- 4.0 yr) in lecture (N = 103) and physical activity (N = 209) courses completed the SPAS, Physical Self-Efficacy Scale (PSES), Surveillance subscale of the Objectified Body Consciousness Scale (S-OBCS), and short form of the Marlowe-Crowne Social Desirability Scale (SDS-C). RESULTS: Confirmatory factor analyses (CFA) revealed that the two-factor model to the 12-item SPAS was a methodological artifact representing positively and negatively worded items. CFA indicated that the nine-item unidimensional model represented an acceptable fit to the SPAS, but it also could be improved. Modifications based on standardized residuals and item content led to the removal of two items and a seven-item unidimensional solution to the SPAS. The nine- and seven-item models demonstrated factorial invariance across gender. Correlation analyses between nine- and seven-item SPAS scores to PSES, S-OBCS, and SDS-C provided support for the construct validity. CONCLUSIONS: The nine- and seven-item unidimensional models to the SPAS demonstrated evidence of factorial validity, factorial invariance, and construct validity; the two-factor model to the SPAS represented a methodological artifact.

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References

1999Cutoff criteria for fit indexes in covariance structure analysis: Conventional criteria versus new alternatives 1980Significance tests and goodness of fit in the analysis of covariance structures.1987Practical Issues in Structural Modeling 1987Factor Analysis and AIC 1995Validity of psychological assessment: Validation of inferences from persons' responses and performances as scientific inquiry into score meaning.1982Development of reliable and valid short forms of the marlowe-crowne social desirability scale 1996The Objectified Body Consciousness Scale 1992Model modifications in covariance structure analysis: The problem of capitalization on chance.

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