This paper reports on a study thatinvestigated Iranian EFL high school students’ perceptions of written grammar feedback to specify their reasons for preferring comprehensive or selective feedback and choosing some feedback strategies. A questionnaire was administered to 100 EFL intermediate high school students who were selected based on their scores on a proficiency test. Moreover, semi-struc...

To date, controversy among scholars exists on whether or not teachers should react to EFL learners' written grammar errors. This study investigated the effect of three feedback types (i.e., selective, comprehensive, and the one recommended by Truscott (1999), that is, no correction) with regard to possible improvements in accuracy in the writings of a total of 66 elementary EFL learners. It, fu...

Program evaluation is an important part of any educational system and provides very useful information on how to design and implement educational programs  A comprehensive program evaluation can inform the policymakers about the effectiveness of the training and provides feedback that can be effective in achieving the desired goals.  

Wireless spectrum is becoming a vital and scarce resource due to the increase development and deployment of mobile device and their associated applications. Dynamic Spectrum Access (DSA) represents one of the few ways that our nation can be able cope with our anticipated spectrum crisis1. Wireless communications is a key tool in today’s economy and efficient use of this spectrum is paramount. I...

Abstract. To demonstrate the performance of content-based image retrieval systems (CBIRSs), there is not yet any standard data set that is widely used. The only dataset used by a large number of research groups are the Corel Photo CDs. There are more than 800 of those CDs, each containing 100 pictures roughly similar in theme. Unfortunately, basically every evaluation is done on a different sub...