Despite the substantial expansion in vocabulary research since the 1980s, we still know very little about how vocabulary develops over time and what factors influence this development. This methodological overview discusses key issues and considerations in vocabulary breadth growth assessment to help advance research in this area. The report…

The Vocabulary Size Test (VST) measures English learners' decontextualised receptive vocabulary knowledge of written English and has nine bilingual versions with multiple-choice options written in other languages. This study used the English-Japanese version of the VST to investigate the extent to which loanword items were answered correctly by…

In an upcoming coverage-comprehension study, we plan to assess learners' meaning-recall knowledge of words as they occur in the study's reading passage. As several meaning-recall test formats exist, the purpose of this small-scale study (N = 10) was to determine which of three formats was most similar to a criterion interview regarding mean score…

Japanese loanwords are mainly derived from English. These loanwords provide a considerable first-language (L1) resource that may assist in second-language (L2) vocabulary learning and instruction. However, given the huge number of loanwords, it is often difficult to determine whether an English word has a loanword equivalent and whether the…

Loanwords in Japanese that share form and meaning with English words are referred to as "Japanese-English cognates" (e.g., [Japanese symbol omitted] "radio") and are of fundamental concern for researchers concerned with vocabulary learning and instruction. This concern is reflected in the growing body of research into…