Abstract: Objective To construct a tacit knowledge sharing scale for clinical teaching and test its reliability and validity. Methods With the SECI model as the theoretical framework, combined with literature review and semi-structured interviews, the initial item pool was formed, and the test scale of tacit knowledge sharing of clinical teachers was formed after expert consultation and pre-investigation. Convenience sampling was used to conduct a questionnaire survey among 325 clinical teachers in tertiary grade-A general hospitals in Anhui Province from November 2021 to February 2022, and the reliability and validity were tested. Results In validity test, exploratory factor analysis extracted two common factors with factor load greater than 0.500, and cumulative variance contribution rate was 61.428%; in confirmatory factor analysis, the fitting indexes of each model were good. The average content validity index of the two-round expert consultation in the content validity test was 0.930 and 0.986, respectively. Cronbach's α coefficient was 0.761; split-half reliability coefficient 0.775, and the test-retest reliability coefficient 0.996. Conclusion The constructed clinical teachers' tacit knowledge sharing scale consists of two dimensions and eight items. The scale has good reliability and validity and can be used as a tool to evaluate tacit knowledge sharing in clinical teachers.

Key words: clinical teacher, tacit knowledge sharing, scale construction, reliability, validity