Construction and validation of organizational police stress questionnaire

The purpose of this study is to validate the organizational police stress questionnaire using the correlation research method. The statistical population includes 12,300 police officers in 22 districts and cities of Tehran Province of which 360 people were selected as a statistical sample by using stratified random sampling. The research tool is the organizational police stress questionnaire. Data were analyzed using structural equation modeling using LISREL8.5 software. First, the model parameters were estimated by the maximum likelihood (MI) method and were used in order to fit the model. In addition, several indices were used such as chi-square ratio to the degree of freedom (χ2 / df), Comparative Fit Index (CFI), and Normed Fit Index (NFI), Parsimony Normed Fit Index (PNFI), Normalized Fit Index (NNFI), Incremental Fit Index (IFI), and Root Mean Square Error of Approximation (RMSEA). The results showed that the measurement model had appropriate fit and fit indices were approved (x2/df=2/89؛ RMSEA=0/072؛ PNFI=0/80؛ NNFI=0/93؛ NFI=0/91؛ CFI=0/94؛ IFI=0/94). Additionally, the results illustrated that all items except items 17 and 18 could be good predictors of the concept of police organizational stress; Therefore, it could be suggested that researchers and the police organization can use the 18-item organizational police stress questionnaire to measure organizational police stress.