This study investigated the effects of different types of corrective feedback (CF) provided during second language (L2) speech perception training. One hundred Korean learners of L2 English, randomly assigned to five groups (n = 20 per group), participated in eight computer-assisted perception training sessions targeting two minimal pairs of…

To what extent do second language (L2) learners benefit from instruction that includes corrective feedback (CF) on L2 speech perception? This article addresses this question by reporting the results of a classroom-based experimental study conducted with 32 young adult Korean learners of English. An instruction-only group and an instruction + CF…

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…

The present study investigated the effects of instruction on the use of the definite article "the" by Japanese learners of English by implementing two instructional treatments that varied in the extent to which they emphasized identifiability and accessibility. One instructional treatment, referred to as the traditional (TR) treatment,…

This study explores whether and to what degree explicit form-focused instruction (FFI) facilitates the use of morphosyntactic forms in second language oral production and also whether it has differential effects on morphosyntactic forms with different linguistic variables. Twenty-seven university-level Chinese EFL participants were randomly…

Sixty-five Japanese learners of English participated in the current study, which investigated the acquisitional value of form-focused instruction (FFI) with and without corrective feedback (CF) on learners' pronunciation development. All students received a 4-hr FFI treatment designed to encourage them to notice and practice the target feature of…

Whereas second language (L2) education research has extensively examined how different types of interactional feedback can be facilitative of L2 development in meaning-oriented classrooms, most of these primary studies have focused on recasts (i.e., teachers' reformulations of students' errors). Some researchers have claimed that recasts serve an…

This study investigated the differential effects of prompts and recasts, in the context of dyadic interaction, on the acquisition of grammatical gender by adult second language learners of French. Participants were 25 undergraduate students enrolled in an intermediate-level French course at an English-speaking university. All students were exposed…

Four teachers and their eight classes of 179 fifth-grade (10-11-year-old) students participated in this quasi-experimental classroom study, which investigated the effects of form-focused instruction (FFI) and corrective feedback on immersion students' ability to accurately assign grammatical gender in French. The FFI treatment, designed to draw…