Reliability and validity testing of the Vietnamese version of the critical thinking self-assessment scale

Background: The Critical Thinking Self-Assessment Scale (CTSAS) is a tool for nursing students to self-assess their critical thinking skills. Aim: This cross-sectional study aimed to examine the reliability and validity of the Vietnamese version of the CTSAS(CTSAS-V). Methods: Participants included 533 nursing students who were recruited through convenience sampling using online questionnaires. Concurrent and construct validity were examined, along with the assessment of internal consistency reliability. Results: The 46-item CTSAS-V showed a significant correlation with the critical thinking subscale of the Motivated Strategies Learning Questionnaire. The exploratory factor analysis identified six factors which explained 76.79% of the variance in critical thinking skills. Confirmatory factor analysis indicated an acceptable model fit. Cronbach's alpha coefficient for the CTSAS-V was 0.98. Conclusions: The CTSAS-V demonstrated good reliability and validity for application among Vietnamese nursing students, suitable for use by nursing faculty, students, and researchers to understand nursing students' critical thinking skills. (c) 2025 Organization for Associate Degree Nursing. Published by Elsevier Inc. All rights are reserved, including those for text and data mining, AI training, and similar technologies.