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Validation of the Learning and Study Strategies Inventory (LASSI) in Doctor of Physical Therapy Learners: A
Jessica T Feda1, Evan M Pucillo2, Laura E Wenger3
1Department of Physical Therapy, Baylor University, Waco, TX 76798, United States.
Importance:
The Learning and Study Strategies Inventory (LASSI) is an instrument that measures self-regulated learning. However, it has not been validated for use in entry-level Doctor of Physical Therapy (DPT) learners.
Objective:
The objective of this study was to investigate the validity and reliability of the LASSI in DPT learners.
Design:
This was a retrospective observational cohort study.
Setting/Participants/Intervention:
Demographic and LASSI data were retrospectively analyzed from 1541 learners enrolled in 5 entry-level DPT programs across the United States.
Main Outcomes And Measures:
A confirmatory factor analysis (CFA) was conducted to evaluate whether the 60-item LASSI (3rd Edition) demonstrated a valid and reliable factor structure. An exploratory factor analysis (EFA) was used to identify a more succinct set of LASSI scales. Goodness-of-fit indices and reliability coefficients were computed to assess model fit and measurement consistency.
Results:
CFA revealed that the 60-item LASSI accounted for 46.7% of total score variance. In contrast, EFA identified a revised 47-item version (termed LASSI-DPT) that accounted for 58.1%, indicating improved construct validity. χ2 goodness-of-fit supported the adequacy of the EFA model (χ2 = 3964.1). The revised 47-item LASSI demonstrated excellent internal consistency, with an overall Cronbach alpha of 0.92, compared to 0.78 for the 60-item version.
Conclusion:
The revised 47-item LASSI-DPT provides a more reliable, concise, and valid assessment compared to the 60-item LASSI, tailored to learning strategies in physical therapist education programs.
Relevance:
Factor analysis demonstrated improved construct validity and excellent reliability in a newly developed 47-item version of the LASSI tailored for DPT learners. This shorter instrument may result in decreased survey fatigue and improved measurement accuracy. With its enhanced psychometric properties, the LASSI-DPT may enable DPT programs to better identify learners who need additional support related to self-regulation of learning.
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