Adequate reporting of quantitative research about language learning involves careful consideration of the logic, rationale, and actions underlying both study designs and the ways in which data are analyzed. These guidelines, commissioned and vetted by the board of directors of "Language Learning," outline the basic expectations for…

Although classical statistical techniques have been a valuable tool in second language (L2) research, L2 research questions have started to grow beyond those techniques' capabilities, and indeed are often limited by them. Questions about how complex constructs relate to each other or to constituent subskills, about longitudinal development in…

In empirical applied linguistics research it is essential that the key variables are operationalized in a valid and reliable way, and that the scores are treated appropriately, allowing for a proper testing of the hypotheses under investigation. The current article addresses several theoretical and practical issues regarding the use of measurement…

This study investigated how task complexity affected native and non-native speakers' speaking performance in terms of a measure of communicative success (functional adequacy), three types of fluency (breakdown fluency, speed fluency, and repair fluency), and lexical diversity. Participants (208 non-native and 59 native speakers of Dutch) carried…

To study lexical knowledge relevant for school success, 40 monolingual Dutch and 40 bilingual Turkish 9 and 11-year olds were asked to explain the meanings of common Dutch nouns in an extended word definition task. Compared to the monolingual Dutch children, the bilingual Turkish children allotted less extensive and varied meanings to Dutch words.…

A study investigated the lexical knowledge of 40 Turkish-Dutch bilingual children aged 9 and 11 years and living in the Netherlands. Results indicate important differences between available lexical knowledge in the first language (L1) and second language (L2); children allot to L1 words less extensive and less varied meaning aspects than to L2…