A study of validity and reliability of Middle School Self-Efficacy Scale
Yardimci, F (2010) A study of validity and reliability of Middle School Self-Efficacy Scale. Anatolian Journal of Psychiatry (Anadolu Psikiyatri Dergisi), 11 (4). pp. 321-326.
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Objective: Self-efficacy is the belief in one's capabilities to overcome the future difficulties one might face. Self-efficacy, a significant motivation of human behavior, has an important place in mental health of the child and the adolescent. Middle School Self-Efficacy Scale is used to measure the self-efficacy of middle school students in physical, emotional and academic success behaviors. This study is aimed at determining the validity and reliability of Middle School Self-Efficacy Scale for Turkish students and adapts it to Turkish. Methods: The study was carried out on 177 primary school students from 6, 7 and 8th grades. Students were sampled among those who were 11 to 14, free of any chronic diseases and eager to participate in the study. ‘Student Information Form’ and ‘Middle School Self-Efficacy Scale’ were used to obtain data. To study the validity of the scale, validity of language and content was examined. To study the reliability of the scale and internal consistency, Cronbach’s alpha coefficient, test retest reliability coefficient and split half coefficient were calculated. Findings: Cronbach’s alpha coefficients for subscales were between 0.71 and 0.94. Cronbach’s alpha coefficient for the full scale was 0.86. Test retest reliability coefficient of the scale was 0.66. According to factor analysis, scale consisted of four subscales: preventive health, inter-personal relations, potential of substance abuse and academic success. Results: The results of psychometric measures showed that ‘Middle School Self-Efficacy Scale’, used to measure self-efficacy of healthy adolescents in terms of their perception of physical, emotional and academic success behaviors, is valid and reliable for Turkish society. The scale will help to assess the perception of self-efficacy in adolescents
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