Dataset Information

Development of a character qualities test for medical students in Korea using polytomous item response theory and factor analysis: a preliminary scale development study

ABSTRACT:

Purpose

This study aimed to develop a test scale to measure the character qualities of medical students as a follow-up study on the 8 core character qualities revealed in a previous report.

Methods

In total, 160 preliminary items were developed to measure 8 core character qualities. Twenty questions were assigned to each quality, and a questionnaire survey was conducted among 856 students in 5 medical schools in Korea. Using the partial credit model, polytomous item response theory analysis was carried out to analyze the goodness-of-fit, followed by exploratory factor analysis. Finally, confirmatory factor and reliability analyses were conducted with the final selected items.

Results

The preliminary items for the 8 core character qualities were administered to the participants. Data from 767 students were included in the final analysis. Of the 160 preliminary items, 25 were removed by classical test theory analysis and 17 more by polytomous item response theory assessment. A total of 118 items and sub-factors were selected for exploratory factor analysis. Finally, 79 items were selected, and the validity and reliability were confirmed through confirmatory factor analysis and intra-item relevance analysis.

Conclusion

The character qualities test scale developed through this study can be used to measure the character qualities corresponding to the educational goals and visions of individual medical schools in Korea. Furthermore, this measurement tool can serve as primary data for developing character qualities tools tailored to each medical school’s vision and educational goals.

SUBMITTER: Hur Y

PROVIDER: S-EPMC10356546 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature

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Publications

Development of a character qualities test for medical students in Korea using polytomous item response theory and factor analysis: a preliminary scale development study

Hur Yera Y Seo Dong Gi DG

Journal of educational evaluation for health professions 20230626

<h4>Purpose</h4>This study aimed to develop a test scale to measure the character qualities of medical students as a follow-up study on the 8 core character qualities revealed in a previous report.<h4>Methods</h4>In total, 160 preliminary items were developed to measure 8 core character qualities. Twenty questions were assigned to each quality, and a questionnaire survey was conducted among 856 students in 5 medical schools in Korea. Using the partial credit model, polytomous item response theor ...[more]

PMID: 37385687

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Project description:BackgroundThere is currently no dedicated measurement for assessing nursing students' study interest in China. Considering the good reliability, validity, and widespread applicability of the Study Interest Questionnaire-Short Form (SIQ-SF), the objective of this study was to validate its usage among Chinese nursing students.MethodsThe translation and cross-cultural adaptation rigorously followed the modified Brislin model. A cross-sectional survey was conducted using the Chinese version of the SIQ-SF and convenience sampling was employed to select nursing students. The Psychometric evaluation of the Chinese version of the SIQ-SF was conducted based on Classical Test Theory and Item Response Theory.ResultsA total of 1158 participants were included in the analysis. The item-level content validity index (CVI) ranged from 0.9 to 1.0, and the scale-level CVI was 0.98. In the Exploratory factor analysis, three factors with eigenvalues above 1 were identified, accounting for 62.554% of the cumulative variance. In the confirmatory factor analysis, the CMIN\DF was 5.639, the GFI was 0.953, the CFI was 0.902, and the IFI was 0.904. The Cronbach's α coefficient of the Chinese version of the SIQ-SF was 0.70. Thirty-one participants were invited to sign the scale after two weeks. The intraclass correlation coefficient was 0.784, and that of items ranged from 0.70 to 0.819. The infit MnSQ values ranged between 0.76 and 1.51, and the outfit MnSQ values ranged between 0.72 and 1.76. The point-measure correlation value ranged between 0.30 and 0.68. The item difficulty measures ranged from - 0.66 to 1.44 logit and the individual learning interest estimations ranged from - 4.22 to 4.97 logit. DIF contrast ranged from 0.00 to 0.33 logits, with all p values greater than 0.05.ConclusionsThe Chinese version of the SIQ-SF demonstrated acceptable reliability and validity among Chinese nursing students and could be used to assess nursing students' study interest in China. With the aid of this scale, teachers can gain a better understanding of nursing students' study interests, thereby maximizing their learning effects through appropriate content and methods.

Project description:BackgroundThe International Classification of Functioning, Disability and Health (ICF) proposes three main health outcomes, Impairment (I), Activity Limitation (A) and Participation Restriction (P), but good measures of these constructs are needed The aim of this study was to use both Classical Test Theory (CTT) and Item Response Theory (IRT) methods to carry out an item analysis to improve measurement of these three components in patients having joint replacement surgery mainly for osteoarthritis (OA).MethodsA geographical cohort of patients about to undergo lower limb joint replacement was invited to participate. Five hundred and twenty four patients completed ICF items that had been previously identified as measuring only a single ICF construct in patients with osteoarthritis. There were 13 I, 26 A and 20 P items. The SF-36 was used to explore the construct validity of the resultant I, A and P measures. The CTT and IRT analyses were run separately to identify items for inclusion or exclusion in the measurement of each construct. The results from both analyses were compared and contrasted.ResultsOverall, the item analysis resulted in the removal of 4 I items, 9 A items and 11 P items. CTT and IRT identified the same 14 items for removal, with CTT additionally excluding 3 items, and IRT a further 7 items. In a preliminary exploration of reliability and validity, the new measures appeared acceptable.ConclusionNew measures were developed that reflect the ICF components of Impairment, Activity Limitation and Participation Restriction for patients with advanced arthritis. The resulting Aberdeen IAP measures (Ab-IAP) comprising I (Ab-I, 9 items), A (Ab-A, 17 items), and P (Ab-P, 9 items) met the criteria of conventional psychometric (CTT) analyses and the additional criteria (information and discrimination) of IRT. The use of both methods was more informative than the use of only one of these methods. Thus combining CTT and IRT appears to be a valuable tool in the development of measures.

Dataset Information

Development of a character qualities test for medical students in Korea using polytomous item response theory and factor analysis: a preliminary scale development study

Purpose

Methods

Results

Conclusion

Publications

Development of a character qualities test for medical students in Korea using polytomous item response theory and factor analysis: a preliminary scale development study

Similar Datasets

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