The purpose of this study was to construct and test a hypothetical model of clinical decision-making ability of nurses based on the Decision Making Process model and the Cognitive Continuum theory.

The data were collected from nurses working at 11 hospitals in Busan, Daejeon, and South Gyeongsang Province from June 30 to August 1, 2017. Finally, the data from 323 nurses were analyzed.

The goodness-of-fit of the final model was at a good level (χ ²/df=2.46, GFI=.87, AGFI=.84, IFI=.90, CFI=.90, SRMR=.07, RMSEA=.07) and 6 out of 10 paths of the model were supported. The clinical decision-making ability was both directly and indirectly affected by task complexity and indirectly affected by experiences, autonomy, and work environment. Specifically, it was strongly directly affected by analytical competency but was insignificantly affected by intuitive competency. These variables accounted for 66.0% of clinical decision-making ability.

The nurses’ clinical decision-making ability can be improved by improving their analytical competency. Therefore, it is necessary to organize nursing work, create a supportive work environment, and develop and implement various education programs.

The purpose of this study was to develop a critical thinking disposition scale for nursing students.

The developmental process was construction of a conceptual framework, development of preliminary items, verification of content validity, development of secondary items, verification of construct validity and extraction of final items. The conceptual framework and first preliminary 60 items were obtained through a review of relevant literature and the development of critical disposition scales by 10 researchers who had been studying critical thinking for one year. These items were reviewed by five specialists for content validity and finally 55 items were chosen. The data was collected from October 1 to 15, 2004 and was analyzed using factor analysis and Cronbach's alpha with the SPSS program. The subjects were composed of 560 Bachelor of Science nursing students from 8 nursing schools.

There were 35 final items which were sorted into 8 factors. The factors were identified as ‘ intellectual integrity(6 items)’, ‘ creativity(4 items)’, ‘ challenge(6 items)’, ‘ open-mindedness(3 items)’, ‘ prudence(4 items)’, ‘ objectivity(4 items)’, ‘ truth seeking(3 items)’ and ‘ inquisitiveness(5 items)’. The cumulative percent of variance was 55.107%. The reliability of the scale, Cronbach's alpha was .892 and the factors' ranged from .562-.836.

The result of this study could be used for measuring critical thinking dispositions of nursing students. However, for further validity and reliability, repeated research is necessary.

To develop a Critical Thinking Skill Test for Nursing Students.

The construct concepts were drawn from a literature review and in-depth interviews with hospital nurses and surveys were conducted among students (n=607) from nursing colleges. The data were collected from September 13 to November 23, 2012 and analyzed using the SAS program, 9.2 version. The KR 20 coefficient for reliability, difficulty index, discrimination index, item-total correlation and known group technique for validity were performed.

Four domains and 27 skills were identified and 35 multiple choice items were developed. Thirty multiple choice items which had scores higher than .80 on the content validity index were selected for the pre test. From the analysis of the pre test data, a modified 30 items were selected for the main test. In the main test, the KR 20 coefficient was .70 and Corrected Item-Total Correlations range was .11-.38. There was a statistically significant difference between two academic systems (p=.001).

The developed instrument is the first critical thinking skill test reflecting nursing perspectives in hospital settings and is expected to be utilized as a tool which contributes to improvement of the critical thinking ability of nursing students.