Although researchers argue that studying semantically related words simultaneously (semantic clustering) inhibits vocabulary acquisition, recent studies have yielded inconsistent results. This study examined the effects of semantic clustering while addressing the limitations of previous studies (e.g., confounding of semantic relatedness with other…

This study focused on the grammatical accuracy of Japanese students who were learning English. The database for the errors came from the Japanese University Student Corpus (JUSC) comprising 61 transcripts containing 51,061 words. An inventory, containing 400 errors in context, was taken from this corpus. The first research question related to the…

Observes and analyzes Japanese senior high school students' errors due to language transfer. The study focuses on written language, is based on classroom research, and provides possible ways of explaining second-language acquisition. (Author/VWL)