The Effects of Audiovisual Input on Second Language Learning: A Meta-Analysis
Abstract
This meta-analysis investigates the contributions of viewing audiovisual input on second language (L2) learning. We calculated 75 effect sizes from 56 experiments (n = 1954). We assessed the effects of audiovisual input on language learning using a within-group (pre-post) meta-analytic approach. The extent to which fifteen moderator variables influenced results was assessed. Several methodologically and pedagogically relevant results were found. Results showed that a) there was a medium effect of audiovisual input on L2 learning (g = 1.01); b) no differences were found between the effects of viewing audiovisual input on different areas of L2 learning (vocabulary, grammar, pronunciation, speaking, listening proficiency); and c) video category had a significant impact on L2 learning with entertainment-focused videos (e.g., TV series, movies, and mixed videos) yielding lower effects than educational videos (e.g., TED Talks, documentaries, and language-focused). These findings along with future research directions for L2 learning through audiovisual input are discussed.