Psychometric properties of Big Five Questionnaire- Children-Short Form (BFQ-C-SF)

The aim of this study was to investigate the psychometric properties of Big Five Questionnaire for Children (BFQ-C-SF). The statistical population of this study was all students of the sixth, seventh, eighth and ninth grades of Ardabil city. From this population, 450 students were selected by Multistage cluster sampling and participated in this study. the Greek Big Five Questionnaire for Children (GBFQ-C-SF) (Markos and Kokkinos, 2017) and Juvenile Eysenck Personality Questionnaire (Eysenck and Eysenck, 1975) were used to collect data. For analyzing data, Cronbach’s alpha, convergent reliability, Exploratory and confirmatory factor analysis were used. Result showed this questionnaire has a good validity (Cronbach’ s Alpha for Conscientiousness 0/75, Intellect/Openness 0/87, Agreeableness 0/72, Emotional Instability 0/88 and Energy/Extraversion 0/83). Result of Exploratory factor analysis showed that five factor structure of the questionnaire (Conscientiousness, Intellect/Openness, Agreeableness, Emotional Instability and Energy/Extraversion) could explain 66/77 percent of total variance. Confirmatory factor analysis results shown that this scale has good fitness (CFI=0/96, TLI=0/95, RFI=0/94 and RMSEA=0/057). Therefore, it can be concluded that this questionnaire is an appropriate tool for assessing the five-factor personality model in children and adolescents.