Evaluation of the Selfitis Behavior Scale Across Two Persian-Speaking Countries, Iran and Afghanistan: Advanced Psychometric Testing in a Large-Scale Sample

This study applied advanced psychometric testing methods, including confirmatory factor analysis (utilizing classical test theory) and the Rasch model (utilizing modern test theory), to examine the psychometric properties among Persian speakers (in Iran and Afghanistan). The participants (3163 Iranians and 1100 Afgha nistani) completed an online survey posted onInstagram pages. The SBS showed promising properties, including satisfactory reliability (e.g., internal consistency and test –retest reliability), excellent construct validity (e.g., good fit in the CFA and Rasch models), and acceptable measurement invariance across Iranian and Afghan samples. Consequently, the SBS is a valid and reliable instrument for assessing selfitis among Persian-speaking samples.
Source: International Journal of Mental Health and Addiction - Category: Addiction Source Type: research