this research chiefly focused on the application of mitigation strategies and traditional form of feedback in writing development of the fifth semester university students majoring in tefl and english translation fields based on vygotsky’s sociocultural theory in general and the notion of “zone of proximal development” in particular. to that end, this study relied on a pre-posttest experimental...

there is a growing interest among the higher education principals and policy makers to improve teacher evaluation methods and more important than that to use the evaluation data. a number of research studies implied the ineffective instruction of esp courses in iran (atai, 2002; eslami, 2005; hayati, 2008; ahmadi, 2008; sherkatolabbasi & mahdavi, 2012; boniadi, ghojazadeh & rahmatvand, ...

the purpose of the present study was to investigate the effect of self-controlled (sc) and instructor-controlled (ic) feedbacks on the acquisition of dart motor skill using videotape feedback. for this purpose, 200 female volunteer students of university of tehran participated in this research. after the questioners had been filled out, 36 individuals were randomly selected from 152 qualified p...

The bulk of research within the interactionist framework seems to be consensually pointing to the beneficial effects of interaction in SLA. However, few studies have investigated the role of training in providing and perceiving interactional feedback, especially among young learners. This study probed the effects of training prior to engagement in interaction in case of young learners acquiring...

this study aimed at comparing the impact of two types of teacher feedback on iranian efl learners’ writing ability and their verb tense consistency in l2 writing. following the administration of a standardized language proficiency test (preliminary english test), sixty-two participants were selected and were randomly assigned to the control (direct-only correction) and experimental (direct meta...

this paper investigates on control and stabilization of a new hyperchaotic system. the hyperchaotic system is stabilized using a new technique which called generalized backstepping method (gbm). because of its similarity to backstepping approach, this method is called gbm. but, this method is more applicable in comparison with conventional backstepping.  backstepping method is used only for sys...

In a complete financial market every contingent claim can be hedged perfectly. In an incomplete market it is possible to stay on the safe side by superhedging. But such strategies may require a large amount of initial capital. Here we study the question what an investor can do who is unwilling to spend that much, and who is ready to use a hedging strategy which succeeds with high probability.

One skill that student teachers need to develop during their academic studies is the capacity to produce accurate and well-organized texts. This study reports on the comparative impact of metalinguistic feedback (MLF), teacher interactive feedback (TIF(, and the peer-feedback (PF) on the accuracy and organization of postgraduate ELT student teachers’ writing. The participants were 57 postgradua...