Appendix A. Descriptive overview of included studies

This appendix offers a structured descriptive profile of the 46 studies reviewed in this SLR. The matrix summarises essential bibliographic and contextual information to support understanding of the research landscape and the diversity of implementations observed. It includes:· Study identification and metadata (reference code, title, authors, publication year, journal, and source database).· Geographical and educational context (country, educational level, and setting).· Participant information (sample size and learner profile, including age, English proficiency, and digital competence when available).· Methodological characteristics (study design and type).· Virtual learning environment (VLE) description, where reported.This dataset aims to enhance transparency and replicability by providing structured information about the reviewed studies. It can be useful for researchers and educators exploring the intersection of educational technology, second language acquisition, and digital learning strategies.