Construct Validation of Self-Determination Theory in Second Language Scale: The Bifactor Exploratory Structural
1Department of English, Imam Muhammad Ibn Saud Islamic University, Al-Ahsa, Saudi Arabia.
Frontiers in Psychology
|October 18, 2021
Summary
This study validated the Self-Determination Theory in Second Language Scale (SDT-L2) for English learners in Saudi Arabia. Results confirm SDT-L2 accurately measures L2 motivation, with autonomous motivation predicting performance.
Area of Science:
- Educational Psychology
- Second Language Acquisition
Background:
- Motivation is crucial for second language learning.
- The Self-Determination Theory (SDT) provides a framework for understanding motivation.
- Validating measurement tools like the SDT-L2 scale is essential for research.
Purpose of the Study:
- To assess the construct validity of the Self-Determination Theory in Second Language Scale (SDT-L2).
- To examine the factorial structure and reliability of the SDT-L2.
- To evaluate the convergent, discriminant, and predictive validity of the SDT-L2.
Main Methods:
- Employed bifactor-Exploratory Structural Equation Modeling (ESEM) on data from 266 Saudi undergraduate English as a second language (L2) learners.
- Analyzed the multidimensionality of the scale, distinguishing specific (regulations) and general (motivation types) constructs.
- Assessed composite reliability, convergent validity, discriminant validity, and predictive validity.
Main Results:
- The SDT-L2 scale demonstrated adequate composite reliability.
- Bifactor ESEM provided detailed insights into the scale's multidimensional structure.
- Autonomous motivation significantly predicted L2 performance, whereas controlled motivation did not.
Conclusions:
- The bifactor ESEM is a useful method for construct validation.
- The SDT-L2 scale is a valid instrument for assessing L2 motivation from an SDT perspective.
- Findings support the application of SDT in understanding and enhancing L2 motivation in Saudi learners.
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