Investigation of psychometric properties of Conners’ Parent Rating Scale Long Form-Revised for primary school students in TRNC

Objective: The purpose of this study was to investigate the psychometric properties of Conners’ Parent Rating Scale Long Form-Revised (CPRS-RL), which is used for assessing behavioral problems especially attention deficit hyperactivity disorder (ADHD) among children, for primary school students in TRNC. Methods: Confirmatory factor analysis (CFA) was performed for the data which was obtained by random stratified sampling from the parents of 469 children who attended 1st-5th grade of primary school. The relationships between subscales were investigated by using Pearson’s correlation as another method of testing the structure validity. The mean scores obtained from two groups with diagnose of ADHD and without any diagnose were compared by t-test analysis to show discriminant validity of CPRS-RL. The internal consistency of the CPRS-RL subscales’ scores was evaluated with Cronbach’s alpha. Test-retest reliability of CPRS-RL’ subscales were examined with t-test analysis at a 4 week interval. Item analysis of CPRS-RL was conducted in two ways. The item-total score correlation was calculated and the 27% sub-upper group difference were compared by t-test for each subscale in order to demonstrate the internal consistency of CPRS-RL. Results: CFA resulted in seven factors which is the same factor structure as the original form. Correlations between subscales were found as 0.13-0.73. Item analyzes showed that all subscales had high internal consistency. It was found that the scale could discriminate the groups with and without diagnose of ADHD; the Cronbach’s alpha coefficients of the CPRS-RL’s subscales were between 0.57-0.90 and test-retest reliability values were between 0.34-0.73. Conclusion: The results of the analysis show that CPRS-RL is a valid and reliable instru-ment for TRNC population [Anadolu Psikiyatri Derg 2020; 21(0.100): 62-69]