Psychometric properties of the Persian Non-Suicidal Self-Injury Expectancies Questionnaire in high school students

The aim of this study was to study the psychometric properties (reliability and validity) of the Persian version of The Non-Suicidal Self-Injury Expectancies Questionnaire (NSEQ) in high school students. The present study is descriptive and evaluative and studies population is all first and second-grade high school students in Rasht in the academic year 1399-1400. 1900 people were selected by cluster random sampling and they completed the Functional Assessment of Self-Mutilation (FASM, Lloyd, Et al, 1997), Cognitive Emotion Regulation Questionnaire- Short (CERQ-S, Garnefski& Kraaije, 2006), the Persian version of The Non-Suicidal Self-Injury Expectancies Questionnaire (NSEQ, Hasking, Boyes, 2017), Self-Efficacy to Avoid NSSI (SEA-NNSI, Czyz Et al, 2014), and general Self-Efficacy (GSE, Schwarzer & Jerusalem, 1997). Results of confirmatory factors analysis showed that the Persian version of the questionnaire had a good fit with its five initial factors and had simultaneous, divergent validity and high internal consistency (All factors between 0.75 and 0.85). Therefore, the Persian version of this questionnaire can be used to assess the population of Iranian students and adolescents.