Validity and reliability of a Turkish version of the Friendship Activity Scale

The purpose of this study was to develop a valid and reliable Turkish version of the Friendship Activity Scale (FAS). Both the English and Turkish versions of the FAS were administered to 36 students to check for language equivalence. The Turkish version of the FAS was then administered to 226 students to ensure internal consistency, and to 61 students to test re-test reliability. The FAS and Adjective Check List (ACL) were administered to 49 students to check concurrent validity. There was a significant relationship between the English and Turkish versions of the FAS (r = .78), and there were no significant differences between the two measurements (p < .05). Cronbach Alpha Reliability of the FAS for the Turkish sample was .86. The Intraclass Correlation Coefficient of the repeated measurements of the FAS appeared to be sufficiently high (.89), and there were no significant differences between the mean values of two interval measurements (p < .05). The FAS significantly correlated with the ACL (r = 0.58). The total item correlations of the FAS were acceptable, ranging between 0.26 and 0.65. In conclusion, the FAS appears to be a valid and reliable instrument for measuring the behavioral intentions of Turkish elementary school children, and their commitment to initiating a friendship with a peer with a disability.