The Turkish validity and reliability study of the Nurse Codependency Questionnaire

Objectives: The aim of this study was to adapt the Nurse Codependency Questionnaire (NCQ) into Turkish and to ensure its validity and reliability. Methods: This study was conducted with 538 nurses working at five state hospitals and one university hospital in Gaziantep Province from March 3 to 29 August 29, 2014. The data were collected using a personal information form and the Nurse Codependency Questionnaire after ensuring the equivalency of the questionnaire’s items in the Turkish language. The statistical analysis of the data was done using SPSS 22 for Windows. The analysis of factor groups used confirmatory factor analysis. The analysis of data conformity used Barlett’s test and the Kaiser-Meyer-Olkin test in the determination of internal consistency. Cronbach’s alpha reliability coefficient and test-retest correlation tests were used to determine internal consistency. Results: The linguistic validity of the NCQ was determined to be sufficient after translation and back-translation, and consulting expert opinion. For the NCQ, sample size was calculated using the KMO (0.81) and Barlett’s test (1,965.419). The root mean square error of approximation (RMSEA) of the questionnaire was 0.051, the comparative fit index (CFI) was 0.88, the normed fit index (NFI) was 0.84, and the standardized root mean square residual (SRMR) was 0.046. The Cronbach’s alpha reliability coefficient for the 15 items in factor 1 was 0.74. For the 9 items in factor 2 it was 0.50, and it was 0.77 for all 24 items on the questionnaire. The test-retest correlation value was r=0.79, and there was a significant correlation between the results of the both tests (p<0.000). Conclusion: The Nurse Codependency Questionnaire has high levels of validity and reliability and can be used to determine levels of nurse codependency in Turkey. © 2020 by Journal of Psychiatric Nursing.