A five-week vocational EFL classroom study compared 21 gamification students with 22 controls. Both groups improved, and adjusted post-test scores favoured gamification, but the experimental group's delayed scores declined, indicating a retention challenge.
Key findings
- Both groups improved, while ANCOVA favoured the experimental group, F=9.39, p
Why this matters globally
The study adds underrepresented vocational evidence and highlights the universal need to evaluate retention rather than immediate scores alone.
Thai researcher contribution
Researchers linked to Thammasat University and Ratchaburi Hospital tested an innovation in Thai vocational EFL with delayed assessment.
Limitations to consider
The sample was 43, random assignment is unclear, and teacher, class and novelty effects may confound results. The intervention was brief, effect size is not reported in the abstract, and delayed decline limits durability claims.