central to vygotsky-inspired sociocultural theory (sct) is the notion of zpd seen by sla researchers as a useful framework within which l2 teaching and learning can take place. van lier (2004) argues that the zpd could be activated in diverse proximal contexts (pcs) and is not limited to the expert-novice scenario. . this study probed whether iranian efl learners' collaborative task performance...

This study aimed at investigating the potential of collaborative and e-collaborative writing modalities in developing interactional complexity, utilization of interactional demonstrators and density of interaction. To this end, 66 Iranian intermediate female English as foreign language learners (EFL) were selected to participate in this study according to their scores on Oxford Placement Test (...