The present study investigated the effect of form-focused and non-form-focused tasks on EFL learners' vocabulary learning through written input. The form-focused task aimed to draw students' attention to the word itself through word recognition activities. Non-form-focused tasks were divided into (a) the comprehension question task, which required an overall understanding of the text without focusing on any words; and (b) the message-oriented task, which pushed the learners into considering the context surrounding the word. The selection of the tasks was based on the notion of task-induced...