Validating the Korean shorter Diagnostic Thinking Inventory in medical education: a pilot study.

Publisher: Korean Society of Medical Education Country of Publication: Korea (South) NLM ID: 101503071 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 2005-7288 (Electronic) Linking ISSN: 2005727X NLM ISO Abbreviation: Korean J Med Educ Subsets: MEDLINE

Original Publication: Seoul : Korean Society of Medical Education

Education, Medical* ; Students, Medical*; Humans ; Pilot Projects ; Reproducibility of Results ; Surveys and Questionnaires ; Republic of Korea ; Psychometrics

Purpose: Developing clinical reasoning across the medical curriculum requires valid, reliable, and feasible assessment tools. However, few validated tools are available for the convenient and efficient quantification of clinical reasoning. Thus, this study aimed to create a shorter version of the Diagnostic Thinking Inventory (DTI) and validate it in the Korean medical education context (DTI-SK).
Methods: The DTI-SK was constructed using content validity and a translation and back-translation process. It comprises two subcategories and 14 items. Its validity and reliability were explored using exploratory and confirmatory factor analyses, mean comparisons of four medical student groups (med 1 to med 4), and internal consistency using Cronbach's α. Two hundred medical students were invited to participate through email, and the survey was administered for 2 weeks.
Results: Data from 136 students were analyzed. Exploratory factor analysis revealed two factors with eigenvalues greater than 1.0 and they together explained 54.65% of the variance. Confirmatory factor analysis demonstrated that the model had acceptable level of fit and convergent validity. Discriminant validity was confirmed using heterotrait-monotrait criterion. Group comparisons demonstrated that the med 4 students showed significantly higher scores than the med 1 and 2 students. The inventory exhibited strong internal consistency for all items (Cronbach's α=0.906).
Conclusion: The findings indicated that the DTI-SK is a reliable and valid tool for measuring medical students' clinical reasoning in the context of Korean medical education.

J Korean Med Sci. 2023 Sep 04;38(35):e266. (PMID: 37667577)
Med Educ. 2006 Dec;40(12):1173-9. (PMID: 17118110)
Cureus. 2021 Nov 18;13(11):e19722. (PMID: 34934585)
Spine (Phila Pa 1976). 2000 Dec 15;25(24):3186-91. (PMID: 11124735)
Med Educ. 2005 Apr;39(4):418-27. (PMID: 15813765)
Int J Nurs Pract. 2022 Apr;28(2):e13043. (PMID: 35229403)
Med Teach. 2003 May;25(3):308-13. (PMID: 12881056)
Int J Dent. 2022 Sep 26;2022:1085326. (PMID: 36199675)
BMC Med Educ. 2021 Feb 2;21(1):87. (PMID: 33531017)
Med Educ. 2015 Oct;49(10):961-73. (PMID: 26383068)
Med Educ. 2007 Dec;41(12):1178-84. (PMID: 18045370)
Acad Med. 2019 Jun;94(6):902-912. (PMID: 30720527)
J Am Assoc Nurse Pract. 2023 Aug 01;35(8):477-486. (PMID: 37471527)
Med Educ. 2005 Jan;39(1):98-106. (PMID: 15612906)
Med Educ. 1990 Sep;24(5):413-25. (PMID: 2215294)
Med Educ. 1984 Nov;18(6):406-16. (PMID: 6503748)
BMC Med Educ. 2022 Jul 11;22(1):536. (PMID: 35820888)
Med Teach. 2021 Feb;43(2):152-159. (PMID: 33205693)
Diagnosis (Berl). 2022 Sep 12;9(4):468-475. (PMID: 36082516)

Dong-A University

Keywords: Clinical reasoning assessment; Diagnostic Thinking Inventory; Medical education; Validation

Date Created: 20240310 Date Completed: 20240312 Latest Revision: 20240313

20240313

PMC10925811

10.3946/kjme.2024.281

38462239