Cognitive diagnostic models (CDMs) have recently received a surge of interest in the field of second language assessment due to their promise for providing fine-grained information about strengths and weaknesses of test takers. For the same reason, the present study used the additive CDM (ACDM) as a compensatory and additive model to diagnose…

This study aims to clearly diagnose EFL "students' writing strengths and weaknesses." I adapted a diagnostic framework which comprises multiple writing components associated with three main dimensions of second language writing. The essays of 304 English learners who enrolled in an English language program were double-rated by 13…

The purpose of this study was to evaluate the "first certificate Gold course book" (Aclam & Burgess, 2006) taught at Mehr English Institute in Lahijan (Guilan Province, Iran). The objectives of this book focused on developing a communicative competence, providing plenty of practice, including listening and reading texts to bring the…

Writing a coursebook is a demanding task and more important than writing is how to evaluate it in order to pin point its weaknesses and improve them. If we yearn to produce a quality and useful coursebook, we need to consider how to develop and evaluate it. The study reported in this article describes the process in which the researcher developed…