AbstractLearning English pronunciation is crucial in enhancing primary school pupils_ communication skills, yet many struggle. This study evaluates the effectiveness of a natural language processing (NLP) tool in improving primary school pupils_ English pronunciation by measuring motivation, confidence, and performance. Conducted in a primary school in Johor, the research used a randomized controlled trial (RCT) design with 30 Year 3 pupils divided into two groups (15 pupils for each group), which are a control and a treatment group. The English teacher assessed motivation, confidence, and performance using a rubric-based evaluation, with a Cronbach_s Alpha value of 0.932, indicating high reliability. This study compares conventional teaching methods with NLP. With _ = 0.10, multivariate analysis of variance (MANOVA) assessed the effectiveness of the teaching methods. The combined dependent variables significantly differed based on teaching methods, Pillai Trace = 0.95, F (24, 5) = 3.72, p < 0.....