اکرم بهرامی

Due to the vital role of critical thinking skills in students' educational and non-educational success, the present research attempted to examine the impact of critical thinking skills in TBSIR approach on the computer-based English expository essay writing of Iranian university students. Participants of this study included 30 students at Gonbad-e-Kavous and Hazrat-e-Masoumeh universities in Iran. They answered to the Watson-Glaser critical thinking skills test (1980), then after two weeks of reviewing TSR structure, they wrote a computer-based English expository essay as pre-test. After four weeks of learning TBSIR structure, they wrote another computer-based English expository essay as post-test. The paired samples t-test and Pearson correlation were run and the results revealed the impact of critical thinking skills in the TBSIR approach on the computer-based English expository essay writing of Iranian university students. Also, the results indicate the positive and significant correlation between critical thinking skills especially analysis and interpretation and the computer-based English expository essay writing of Iranian university students, which helps the students to promote their educational and social lives. Finally, teachers, teacher trainers, syllabus designers and materials developers can benefit from the results of this study.

Academic discourse is the collaborative interaction within academic communities, primarily aimed at convincing readers that the writers' arguments are valid. Despite the fact that nouns are frequently used in academic writing, the rhetorical functions of nouns have received limited attention in academic writing analysis. This research sets out to: (1) investigate the frequency of Metadiscursive Nouns (MNs) in Iranian scholars' research articles, and (2) compare MN usage across academic disciplines and genders. In this corpus-based study, 40 articles from the fields of Applied Linguistics, Psychology, Medicine, and Chemistry were carefully selected and analyzed based on Jiang and Hyland's (2016) MNs taxonomy. Chi-square analyses revealed significant differences across disciplines and genders, with generally weak effect sizes. The findings revealed gender-based disparities, with male scholars using MNs more frequently in soft disciplines (78.4%) compared to female scholars (69.6%), while female scholars (30.4%) exceeded male researchers (21.6%) in MN usage in hard disciplines. The results also indicated that MN usage differed significantly across disciplines, with the highest frequencies observed in Linguistics and Psychology, despite the relatively small effect size. This research underscores the impact of disciplinary norms and gender on MNs' selection and usage in academic writing, providing valuable insights for teaching academic writing skills, developing instructional materials, and conducting academic discourse analysis.