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. 2021 Dec 11;21(1):614.
doi: 10.1186/s12909-021-03035-6.

Validation of Internal structure of Self-Directed Learning Readiness Scale among Indian Medical Students using factor analysis and the Structural equation Modelling Approach

Archana Prabu Kumar  1   2 , Abirami Omprakash  1 , Prabu Kumar Chokkalingam Mani  3 , Narasimman Swaminathan  4 , K Maheshkumar  5 , K N Maruthy  6 , B W C Sathiyasekaran  7 , P V Vijayaraghavan  8 , R Padmavathi  9
Affiliations

Validation of Internal structure of Self-Directed Learning Readiness Scale among Indian Medical Students using factor analysis and the Structural equation Modelling Approach

Archana Prabu Kumar et al. BMC Med Educ. .

Abstract

Background: The Self-Directed Learning Readiness Scale (SDLRS) is a tool that helps in the assessment of the readiness of the students to pursue Self-Directed Learning (SDL). There are no documented studies on the validation of internal structure of the SDLRS among Indian medical students. Hence, the objective of this study is to validate the internal structure of SDLRS among Indian medical students using factor analysis and the Structural Equation Modelling (SEM) approach.

Methods: We administered Fisher's 40-item SDLRS to 750 students after receiving the ethics clearance and the author's permission and taking written informed consent from all the study participants (response rate: 92%). The exploratory factor analysis (EFA), confirmatory factor analysis (CFA), and Cronbach's alpha were performed using SPSS version 25 and the Lavaan package of R version 3.1.2.

Results: The values of the comparative fit index (CFI), standardised root-mean-square residual (SRMR), and root mean square error of approximation (RMSEA) were ≥ 0.9, ≤ 0.08, and ≤ 0.08, respectively, for a model fit to be acceptable. EFA showed that except for Q2 (loading score: 0.210), Q12 (loading score: 0.384), Q13 (loading score: 0.362), and Q25 (loading score: -0.219), all the items loaded well. After the exclusion of the aforementioned items, the factor loading scores for the items in the self-management, desire for learning, and self-control factors ranged from 0.405 to 0.753 (Cronbach α: 0.775), 0.396 to 0.616 (Cronbach α: 0.730), and 0.427 to 0.556 (Cronbach α: 0.799), respectively. The updated model was used for CFA, which displayed a good model fit.

Conclusions: The resultant model consisting of 36 items is shown to have internal structure validity for Indian version of SDLRS, which can be used to assess medical students.

Keywords: Medical students; Self-Directed Learning Readiness Scale (SDLRS); Self-directed learning; Structural equation modelling (SEM); Validation.

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Conflict of interest statement

The authors report no conflict of interest in this work.

Figures

Fig. 1
Fig. 1
SEM results of the confirmatory factor analysis for the SDLRS model. (SM: self-management, DL: desire for learning, SC: self-control)
See this image and copyright information in PMC

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