Previous studies have shown that learner individual differences have important impacts on L2 accuracy development. The present study examines a learner variable (i.e. extraversion versus introversion) and its effects on incidental focus on form. Twenty-eight ESL students in two classes (an advanced and an upper-intermediate class) and their…

This article recounts three studies that portray an evolution from research examining the effects of researcher-designed instructional interventions to research examining the impact of helping teachers to design their own instructional interventions. Study 1 investigated the effects of an instructional treatment designed by the research team on…

In this study we compared the effects of two types of form-focused instruction (FFI) on second language (L2) learning and their potential contributions to the development of different types of L2 knowledge. Both types of instruction were pre-emptive in nature, that is planned and teacher generated. In Integrated FFI attention to form was embedded…

This study investigated the effects of second language (L2) proficiency differences in pairs and patterns of interaction on L2 learning, making use of both qualitative and quantitative data. We designed the study in such a way that four different "core" participants interacted with higher and lower proficiency "non-core"…