This study attempted to investigate the impact of teacher’s code-switching on the acquisition of a problematic grammatical structure, namely, object relative clauses, by intermediate EFL learners. Moreover, a secondary objective of the study was to determine the EFL learners’ attitudes and opinions regarding the effectiveness of teacher’s code-switching in their learning of a specific aspect of...

Since Holland (1993) introduced the concept of tags a number of tag models with intriguing and potentially very useful, properties have been advanced. However there is currently little understanding as to the exact mechanisms that produce these results. Specifically it is not know what (if any) are the necessary conditions for tag systems to produce high levels of cooperation in social dilemmas...

this research intended to determine whether english and persian men and women were different with respect to the use of intensifiers, hedges and tag questions. to conduct the study, r. lakoff's (1975) ideas concerning linguistic differences between males and females were taken into account. in order to gather the most natural-like data, 6 english and 8 persian film• scripts with a family a...

This paper investigates the asymmetric effects of monetary policy on economic growth over business cycles in Iran. Estimating the models using the Hamilton (1989) Markov-switching model and by employing the data for 1960-2012, the results well identify two regimes characterized as expansion and recession. Moreover, the results show that an expansionary monetary policy has a positive and statist...