Development and Validation of Core Competency Diagnostic Instrument for Undergraduate Students : Based on the Case of D University

Purpose: The purpose of this study is to develop and validate a diagnostic instrument for assessing the core competencies(practical, inquiry, community) of undergraduate students at D University. Method: After reviewing previous studies to draft preliminary items, content validity was assessed by eight experts, and face validity was evaluated by ten students from D University, leading to the development of the final preliminary items. Subsequently, two surveys were conducted with D University students(preliminary survey: 772, main survey: 894) to perform descriptive statistics, reliability analysis, exploratory factor analysis, and confirmatory factor analysis. Expert reviews were conducted to adjust the items. Results: The final diagnostic tool, consisting of 52 items, includes three main competencies and three sub-competencies for each. It demonstrated good reliability and validity. Conclusion· The core competencies diagnostic instrument can aid in evaluating and improving the effectiveness of curricula and extracurricular programs based on core competencies at universities.