Dataset on the Use of Digital and AI Tools in Adult Second Language Learning

This dataset was collected from 100 adult learners participating in a 12-week online language program enhanced with digital and AI-assisted learning tools. It contains: Pre- and post-test scores for vocabulary, grammar, and pronunciation Engagement metrics from AI platforms: time spent, modules completed, activities attempted, and accuracy percentages Summarized interview responses highlighting learner motivation, engagement, and self-directed learning The dataset is anonymized and intended for research on adult second language acquisition (SLA) and the effectiveness of digital and AI-assisted tools. It can be used by researchers, educators, and instructional designers for analysis, replication studies, and program development.