The Factor Structure of the Revised Cheek and Buss Shyness Scale in an Undergraduate University Sample

OBJECTIVE The present study examined the psychometric properties of the Persian version of the Revised Cheek and Buss Shyness Scale (RCBS) using confirmatory factor analysis among (n = 300) college students. METHOD A total of 300 undergraduate students participated in this study And completed the Revised Cheek and Buss Shyness Scale (RCBS). A confirmatory factor analysis was performed to test diagnosis as a unitary construct and to test an earlier-reported two-factor model. RESULTS Results indicated that unidimensional measurement model of the RCBS did not provide the best fit for the data. Then three measurement models were tested, and the results showed that a two-factor model taking into account differences in the direction of item wording provided a satisfactory and parsimonious fit to the data. Multi-group confirmatory factor analysis was used to better understand the factorial invariance of the scale across genders, and indicated that two-factor structure of the RCBS was equivalent across genders. Supplementary t-tests revealed no other gender differences on shyness. CONCLUSIONS The results provide initial support for the construct validity of the self- report version of the RCBS in college students.