current studies in second language (l2) learning have revealed the positive role of corrective feedback (cf) in both oral and written forms in different language features. the present study was an attempt to investigate the effect of both direct and indirect written corrective feedback (wcf) on the use of grammatical collocations in l2 writing. the study also sought to examine whether the effec...

Background: Regarding importance of anti-oxidative nutrition in recovery period especially in relation with strengthening the immune system, the aim of this study was to investigate the effect two consecutive soccer matches with vitamin C supplementation during recovery on serum immunoglobulin and cortisol in collegiate male footballers. Methods: A sampling of 36 soccer footballers from ...

Background : Manipulative skills are one of the fundamental skills subtitles which is used in most of daily and sports activities. The aim of this study was to compare the effect of traditional games and ordinary games on manipulative skills development in 8-10 years old Gorgan boys with educable mental retardation. Materials and Methods: Personal information was evaluated by the researcher mad...

Video games are the most modern and sophisticated form of media in the present, which attracts millions of children and adults worldwide. The various effects of different types of video games on the psychological characteristics of gamers have been studied over the years. The serious effects of these games on cognitive and emotional characteristics such as memory, concentration, visual-motor sk...