Evaluating AI-Powered Applications for Enhancing Undergraduate Students' Metacognitive Strategies, Self-Determined Motivation, and Social Learning in English Language Education.

Artificial Intelligence (AI) technologies are transforming educational settings by offering tools that enhance learning experiences. AI-powered applications, such as ChatGPT and Poe, provide real-time assistance, fostering learner autonomy and self-determined motivation. However, limited research has explored their impact on undergraduate students' learning strategies and motivation. This study investigates the effectiveness of AI-powered educational applications in enhancing metacognitive and social learning strategies, as well as self-determined motivation, among Chinese undergraduate students. This mixed-methods quasi-experimental study involved 310 undergraduates (45% female, 55% male; M age = 21) at the Criminal Investigation Police University of China. Participants were assigned to an AI-integrated experimental group (n = 139) or a control group (n = 171). Validated questionnaires assessed metacognitive/social strategies (SILL) and autonomous motivation (RAI). Qualitative data from 834 reflective journals were thematically analyzed. ANCOVA was used to compare post-test outcomes, controlling for pre-test scores, while journals provided experiential insights. Ethical approval and informed consent were obtained. Using a quasi-experimental design, this study investigated the impact of AI-integrated instruction on metacognitive strategies, social strategies, and motivation in 310 undergraduate students. ANCOVA revealed significant improvements in the AI group (p < .001), with large effect sizes observed for metacognition (η² = 0.39) and motivation (η² = 0.31), which are large effect sizes according to Cohen's benchmarks. Qualitative analysis of 834 journals highlighted themes of autonomy, support for metacognitive strategies, and reduced anxiety, although risks of superficial application were noted. Mixed methods confirmed AI's effectiveness in enhancing strategic learning. AI applications facilitate independent academic exploration and enhance learners' motivation by providing immediate support and personalized learning experiences. These findings highlight the potential of AI-powered tools to foster learner autonomy. However, successful integration into educational settings requires strategic pedagogical approaches to maximize benefits while addressing potential challenges.