Abstract: Objective: To test the Nurse' Disaster Nursing Competency Evaluation Tool's reliability and validity for clinical nurses. Methods: Based on the ICN Framework of Disaster Nursing Competencies, the Nurses' Disaster Nursing Competencies Evaluation Tool was developed by literature review and Delphi expert consultation. A total of 723 nurses were selected by convenience sampling to examine the reliability and validity of the tool. Results: The nurses' disaster competencies evaluation tool contained four first-level indexes, nine second-level indexes and 55 third-level indexes. The result of the clinical measurement showed that Cronbach's α coefficient of the whole tool was 0.974; the test-retest reliability after two weeks was 0.999. In addition, content validity index of the scale was 0.93; the correlation coefficient between first-level indexes and the whole tool ranged from 0.805 to 0.951; the construct validity was validated by factor analysis and the four factors' cumulative variance contribution rate was up to 56.529%. Conclusion: The Nurses' Disaster Nursing Competency Evaluation Tool has good reliability and validity. It can be applied to measure the clinical nurses' disaster nursing competency.

Key words: nurses; disaster nursing assessment; reliability; validity