Cross-Cultural Adaptation and Psychometric Evaluation of the Persian Version of the Clinical Decision-Making in Nursing Scale

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 (𝜒 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 afte deleted. Conclusion The 29-item Persian CDMNS is a valid and reliable instrument for assessing Iranian nurses' perceptions of clinical decision-making.