Abstract

Background and Purpose: The aim of this study was the cross-cultural adaptation and psychometric evaluation of the Persian version of Clinical Decision Making in Nursing Scale (CDMNS). Methods: The original CDMNS was translated into Persian using the Beaton's guideline. Its qualitative face validity, qualitative and quantitative content validity, its construct validity, and reliability was assessed. Results: Eleven items out of forty items were deleted due to factor loading values less than 0.3. Subsequently, model fit indices changed as follows: Chi-square value divided by degree of freedom (chi(2)/DF): 2.8, root mean score error of approximation (RMSEA): 0.07, standardized root mean square residual (SRMR): 0.06, comparative fit index (CFI): 0.93, goodness of fit index (GFI): 0.80, and adjusted goodness of fit index (AGFI): 0.77. The Cronbach's alpha values and test-retest intraclass correlation coefficient of the 29-item scale and its subscales also increased after deleted. Conclusion: The 29-item Persian CDMNS is a valid and reliable instrument for assessing Iranian nurses' perceptions of clinical decision-making.