Siritikul S, Chalanunt S, Utrapiromsook C, Mungara S, Wongpakaran T, Wongpakaran N, Kuntawong P, Wedding D. Changes in character strengths after watching movies: when to use rasch analysis.
BMC Res Notes 2021;
14:5. [PMID:
33407785 PMCID:
PMC7787118 DOI:
10.1186/s13104-020-05424-4]
[Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Accepted: 12/16/2020] [Indexed: 05/30/2023] Open
Abstract
Objective
Professionalism is a critical part of a medical education, and various activities have been proposed to enhance professionalism among medical students. Watching films is an activity to promote character related to professionalism. Limitation of such is a single group pre-posttest design raising concerns about the errors of measurement. The study aimed to demonstrate a method to deal with this design using Rasch analysis.
Results
This study used a pre-posttest design with 40 first year medical students. All participated in a 3-day activity that involved watching four selected movies: Twilight, Gandhi, The Shawshank Redemption and Amélie. These films offer compelling illustrations of the themes of self-regulation, humility, prudence and gratitude, respectively. All participants completed a 10-item composite scale (PHuSeG) addressing these themes before and after watching the movies. When determining who benefitted from the intervention, paired t-tests on the results of a Rasch analysis were used to evaluate changes between pre- and posttest. Using Rasch analyses, we could document the stability of the items from pre- to posttest, and significant changes at both the individual and group levels, which is a useful and practical approach for pre- and posttest design. Moreover, it helps validate the psychometric property of the instrument used.
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