Introduction: The Strengths and Difficulties Questionnaire (SDQ) is a 25-item screening measure for emotional and behavioral problems in children and adolescents ages 4 to 17. Aim: To evaluate the reliability and factor structure of SDQ teacher version in a sample of Albanian elementary school children. Material and Methods: Teachers of children (N = 542) from three elementary schools of Tirana city, Albania, (aged 6 to 12 years, grade 1-4) completed the Albanian version of SDQ. Internal consistency reliability was determined by calculation of the Cronbach-α coefficient and average inter-item correlation. Both Confirmatory factor analysis (CFA) and Exploratory factor analysis (EFA) examined the underlying factor structure of the questionnaire. Results: Internal consistency reliability of subscales ranged from acceptable to good with α values that ranged from α =.68 (prosocial) to α = .83 (hyperactivity-inattention) and average inter-item correlation ranged from 0.5 for hyperactivity scale to 0.20 for total difficulties scale. Confirmatory factor analysis did not confirm the five factor structure of the teacher version of SDQ in Albanian, with values of incremental fit indices (χ2(265)= 1562.72, p
Key words: children, primary school, psychometric, Strengths and Difficulties, Questionnaire.
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