Examining the Validity and Reliability of Teachers’ Work Life Quality Measurement Tool

Document Type : Original Article



The purpose this research was to examine the validity and reliability of questionnaire on teachers’ work life quality. This research was conducted in the form of descriptive-analytical and cross-sectional method. The statistical population included all 2747 secondary school teachers in Tabriz in 2016 that were selected through cluster random sampling method. The sample size was determined as 340 individuals according to Routes and Error Formula. The measurement tool included the Questionnaire of Teachers’ Work Life Quality Ilgan et al. (2014). Next, the data were analyzed using Spss20 and Amos24 software. The results showed that the concerned questionnaire had acceptable level of face and content validity (0.87). In the case of reliability, it was found that the Intra-class Correlation Coefficient was more than 0.61. Furthermore, the Cronbach's Alpha Coefficient was 0.97 and Test-Retest Correlation Coefficient was located in the range of 0.65 to 0.89. The results of Exploratory Factor Analysis showed that 5 factors could explain about %77 of the total variance. The results of Confirmatory Factor Analysis represented the appropriate fitness of information with the five-component structure (P<0.05; df=246; X2=435/09; RMSEA=0/048; CFI=0/98). Conclusively, it was argued that the Questionnaire of Teachers’ Work Life Quality enjoyed an acceptable level of quality and appropriateness. Thus, the Persian version of this questionnaire can be used in researches as a standard tool.


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