فرخ لقا حیدری

Considering the paramount importance of writing logical arguments for college students, this study investigated the effect of dynamic assessment (DA) of Toulmin Model through teacher- and collective-scaffolding on argument structure and overall quality of argumentative essays of Iranian EFL university learners. In so doing, 45 male and female Iranian EFL learners taking part in the study were randomly assigned into three groups (two experimental groups including the teacher- and collective-scaffolding and one control group), each consisting of 15 learners. Toulmin Model of argumentation was used as an instructional tool in this research. The necessary data were collected through a pre- and post-test argumentative essay. During the experiment, the dynamic assessment groups wrote and revised their essays in response to teacher’s or peers’ supportive dialogue and zone of proximal development (ZPD) sensitive feedback on the argument structure of their essays; whereas, the control group did not receive such mediation and they were evaluated on their own independent performance. The results of statistical analyses carried out on post-test scores on argument structure and overall quality of the essays pointed out to the outperformance of the teacher- and collective-scaffolding groups on both variables. Furthermore, follow-up Post-hoc analyses revealed no significant difference between the teacher- and collective-scaffolding groups in terms of the overall quality of the argumentative essays. However, the statistically significant difference between the two experimental groups with regard to the argument structure indicated the outperformance of the teacher-scaffolding over the collective group. The obtained results support the fact that autonomy and improvement cannot be thrust upon learners, rather they need to be assisted wisely towards independence.

This study tested the impact of implicit and explicit knowledge of grammar on learners’ use of oral communication strategies (OCSs) and the interface of OCSs and oral fluency. The study was performed on 24 male and 36 female Iranian university students of English Translation studying at Payame Nour Universities of Lar, Khonj, and Evaz chosen based on availability and ease of access. The data were gathered using Timed Grammaticality Judgement Test (Dekeyser, 2000) as a measure of implicit knowledge of grammar, a structure section of TOEFL Paper-based Test (version 2004) as a measure of explicit knowledge of grammar, Oral Communication Strategies Inventory (Nakatani, 2006), and two oral production tasks for measuring learners' oral fluency. Analysis of the data using Multivariate Analysis of Variance (MANOVA) and Pearson’s Correlation showed that both implicit and explicit knowledge of grammar affect learners’ use of oral communication strategies; however, no relationship was found between overall use of OCSs and oral fluency which can be suggestive of greater or possibly overriding impacts of some other variables on oral fluency compared to OCSs. The findings of the study are supposed to provide guidelines for learners, teachers and syllabus designers concerning the use of OCSs, especially with regard to other variables considered in this study.

This study aimed to investigate the washback effect of three alternative assessment procedures, namely oral-conferences, portfolios, and corpora-based feedback on the writing achievement and attitudes of Iranian EFL university learners. The participants taking part in the study were 156 native Iranian students in a mixed Reading-Writing course. Through the two three-month semesters, the learners were studied in terms of three experimental and one control groups. It should be mentioned that revision was a major component of the pedagogy and learners were asked to incorporate feedback into their revision processes. The findings revealed that the aforementioned assessment procedures led to a significantly better performance of the participants and created a considerable change in their attitudes.