Iranian Journal of Nursing and Midwifery Research1735-90661212008042944PhD, Assistant Professor, Department of Health, School of Nursing and Midwifery, Isfahan University of Medical Sciences, Isfahan, IranMSc, Department of Medical Surgical Nursing, School of Nursing and Midwifery, Isfahan University of Medical Sciences, Isfahan, IranMSc, Department of Health, School of Nursing and Midwifery, Isfahan University of Medical Sciences, Isfahan, Iran.MSc, School of Nursing and Midwifery, Isfahan University of Medical Sciences, Isfahan, Iran.20101113BACKGROUND: Today, nurses are exposed to everchanging complicated conditions in health care services, they provide. To be able to cope with these conditions effectively, they should be competent decision makers. Besides, as decision making conditions get more complicated, using critical thinking is a need. The current study was carried out to evaluate the relationship between critical thinking and clinical decision making, in nurses of critical and general care units of hospitals in Isfahan. In addition, it is also aimed to compare the nurses of critical and general units in critical thinking and clinical decision making. METHODS: This is a correlation, descriptive study of cross-sectional type. The participants are 140 nurses; 70 working in critical care unit and 70, working in general units. Sampling method was random stratified sampling and the data was collected using a questionnaire with three sections; containing items on demographic data, clinical decision making and California critical thinking skills test. The validity and reliability of the questionnaire was approved using content validity, test-retest method and internal correlation test. The data was analyzed using variance analysis, Pearson correlation and t-test. RESULTS: The mean score of critical thinking and clinical decision making was 10.61, 63.27 and 10.67, 61.66 for nurses of critical care and general units, respectively. No statistical significant difference between two groups was observed in the area of clinical decision making and critical thinking. In addition, no statistical correlation was observed between the clinical decision making and critical thinking. CONCLUSIONS: The findings of the study demonstrated that the mean score of critical thinking was low in nurses. Probably, it originates from the educational system shortages and also, the professional environment problems. Some experts believe that the reason for lack of correlation between critical thinking and clinical decision making goes back to the absence of appropriate tool to measure the correlation. KEY WORDS: Critical thinking, clinical decision making, nursehttp://ijnmr.mui.ac.ir/index.php/ijnmr/article/view/4http://ijnmr.mui.ac.ir/index.php/ijnmr/article/download/4/4