Task-based vocabulary learning has recently attracted lots of attention in the field of second language (L2) vocabulary acquisition. This article compares the effects of input and output tasks on English as a Foreign Language (EFL) learners' acquisition of vocabulary knowledge. Four intact classes of EFL learners were randomly assigned to one of…

While learners can acquire vocabulary through extensive reading (Pigada & Schmitt, 2006), research suggests that acquisition can be more effective when supplemented with targeted vocabulary activities (e.g., Paribakht & Wesche, 1997). Problems arise, however, in determining what vocabulary learners have acquired, and what items should be…