What pronunciation training methods have controlled trial support
Controlled trials support several pronunciation training methods, particularly those using computer-assisted pronunciation training (CAPT) and explicit pronunciation instruction with feedback.
Key supported methods include:
-
Computer-assisted pronunciation training (CAPT): Controlled trials mostly use randomized controlled designs showing CAPT improves segmental features through controlled practice, implicit and explicit feedback, and human listener assessment of phonetic accuracy. 1, 2, 3
-
Traditional drilling methods: Many studies use listen-and-repeat, read-aloud activities as core training methods, showing effectiveness in controlled trials. 2
-
Technology-enhanced pronunciation instruction integrating multi-sensor feedback and neural network algorithms has shown significant improvements in accuracy and fluency vs. traditional methods. 4
-
Natural language processing (NLP)-based tools significantly improved motivation, confidence, and performance in randomized controlled trials with young learners. 5
-
Meta-analyses of controlled trials point to positive effects of pronunciation instruction on segmental and suprasegmental features, generally improving comprehensibility and intelligibility. 6, 7
-
Strategy-based pronunciation instruction emphasizing self-regulation, goal setting, awareness raising, and online speech models with feedback also has empirical support. 8
In sum, controlled trial evidence supports the effectiveness of pronunciation training methods that include computer-assisted practice, traditional drilling, technology-enhanced feedback, and strategy-focused instruction using systematic, measurable approaches. These methods enhance segmental accuracy, fluency, and global intelligibility in controlled settings with both children and adult learners. 3, 7, 1, 2, 4, 5, 6, 8