The NSCQ [12] included 36 items, whose responses were based on an eight-point Likert-type scale (totally false, false, relatively false, somewhat false, somewhat true, relatively true, true, totally true) and scored from 1 to 8, with the total score ranged from 36 to 288. Accordingly, a higher score indicated a higher level of PSC in nurses [12]. Badieh Peyma Jahromy et al. (2014) have also confirmed the construct validity of this questionnaire through exploratory factor analysis in Iran. Moreover, they have measured the reliability of the questionnaire concerned using the split-half method and internal consistency, wherein the Spearman-Brown prophecy formula and Cronbach’s alpha coefficient were reported respectively 0.84 and 0.97 [25].
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