درخت حوزه‌های تخصصی

Unidimensionality is an important assumption of measurement but it is violated very often. Most of the time, tests are deliberately constructed to be multidimensional to cover all aspects of the intended construct. In such situations, the application of unidimensional item response theory (IRT) models is not justified due to poor model fit and misleading results. Multidimensional IRT (MIRT) models can handle several dimensions simultaneously and yield person ability parameters on several dimensions which is helpful for diagnostic purposes too. Furthermore, MIRT models use the correlation between the dimensions to enhance the precision of the measurement. In this study a reading comprehension test is modelled with the multidimensional Rasch model. The findings showed that a correlated 2-dimensional model has the best fit to the data. The bifactor model revealed some interesting information about the structure of reading comprehension and the reading curriculum. Implications of the study for the testing and teaching of reading comprehension are discussed.

This study aimed at describing a causal model of variables influencing preservice EFL teachers΄ technological pedagogical content knowledge (TPACK). A descriptive correlational design was used to meet the objective of the study, therefore, 138 (67 male and 71 female) fourth-year student teachers in Teacher Education University were selected through convenience sampling method. A questionnaire including seven sections each of which measuring an aspect of TPACK was utilized. The sections of instrument were borrowed from those validated by Sahin (2011) for evaluating content knowledge, pedagogical knowledge, pedagogical content knowledge, and technological knowledge, and by Chai, et al. (2011) for measuring technological knowledge, technological pedagogical knowledge and TPACK. Path analysis and Pearson correlation were used for inferential statistical analysis. Results showed that there existed significant positive correlations between the TPACK constructs. Additionally, content knowledge and pedagogical knowledge, unlike technological knowledge, were found to have a direct impact on TPACK. Moreover, it was found that, among the measured variables, content knowledge had the greatest total effect on TPACK whereas that of pedagogical content knowledge was the minimum. Therefore, the results of this study have implications for curriculum design, policy decisions and teacher education planning.

Appraisal theory has provided researchers with a powerful analytical tool to explore how language users express their feelings, attitude and judgments in texts. The present study was conducted to explore the use of appraisals in Persian recounts with a focus on the attitude subsystem. Forty-eight online recounts were selected (22 female writers and 26 male writers). The analysis was conducted two times at a one-week interval using the UAM corpus tool software. The results indicated that women generally used more attitude resources in their recounts compared to men and they also used more affect than men, both men and women encoded their evaluation more explicitly rather than implicitly, and in both types of recounts, attitude subsystems appeared in a special order in terms of frequency. In conclusion, predominant use of attitude in Persian recounts can be considered as evidence of effectiveness and applicability of the appraisal theory.

Culture, intercultural interaction, and language have often been described as indivisible and the relation between them is quite intricate. This study was conducted to evaluate Iranian and Afghan secondary English textbooks. Two aspects, representation of culture and intercultural interaction, were focused on in the conversation parts of Iranian and Afghan secondary English textbooks. First, 172 conversations in Iranian textbooks and 160 conversations in Afghan textbooks were analyzed based on Byram’s (1994) framework to investigate the frequency of representation of culture. Second, all the conversations were analyzed based on Song’s (2013) model to investigate the frequency of intercultural interactions. Results revealed that Social Interaction was the most frequent category for the representation of culture and Superficial Interaction was the most frequent category for intercultural interactions. In the same vein, National History was largely ignored in the representation of culture within these 12 books while Critical Reflection was the category that was not paid due and sufficient attention to throughout the books regarding the intercultural interaction. The study implies that teachers, materials developers, and coursebook designers might be able to make more informed and proper decisions regarding the way and the extent cultural elements are to be incorporated in English textbooks.

The teaching and learning of grammar have continuously been core areas of discussion among practitioners of TEFL. Despite significant investment in creating optimal conditions for grammar learning, it remains essential to explore innovative instructional methods that enable learners to engage meaningfully with grammatical structures, thereby enhancing the effectiveness of grammar acquisition. Learners may reconstruct various grammatical structures by interpreting grammar from their textbooks while drawing upon their own experiences, resources, and events from life. This is called a learning-oriented approach that involves hypothesis testing and conceptualization that, in turn, incubates awareness of one's limitations and needs. This study investigates whether the remodeling method of grammar instruction, where learners reconstruct grammatical structures based on personal experiences, significantly enhances Iranian EFL learners' grammatical and vocabulary proficiency. The research employed an experimental research design where a pretest was administered, and a posttest was administered. The study involved forty high school EFL students aged 15 to 16 from Imam Khomeini Technical High School in Shahreza, situated in the southern part of Isfahan province in Iran. While the performance of learners in the experimental group subjected to remodeling method interventions was obtained, their control group, which was not subjected to such intervention, was measured for comparison. The findings revealed that the experimental group recorded a higher improvement in grammatical knowledge due to the remodeling approach. Furthermore, the results indicated that engaging in the remodeling of various structures allowed learners to communicate more effectively in oral interactions and to enhance their understanding of grammar and vocabulary. Statistically significant differences were observed between the experimental and control groups. This study underscores the value of incorporating the strategy of having students remodel various structures based on their concepts in English language instruction to foster greater proficiency in the language. Based on the findings, the researcher recommends utilizing, activating, and implementing this strategy on the other skills of the English language.

Recent developments in technology have affected various aspects of human life, including education. These technological advancements have resulted in the introduction of new trends in teaching methodology. These trends include pure online instruction, mixed online and face-to-face instruction (blended), etc. In order to identify the efficacy of such kinds of instruction in comparison with traditional methods, this quasi-experimental study was conducted to explore the effects of virtual vs. blended-language instruction on the development of listening and reading skills by Iranian intermediate EFL learners. To achieve this goal, 60 intermediate EFL learners were selected to participate in two experimental (virtual and blended) and one control (traditional face-to-face) groups. After the provision of the treatments in experimental (reading and listening through virtual and blended methods of instruction) and control (reading and listening through traditional method) groups, a post-test was conducted to measure the attainment of the participants in each language skill.  The results revealed that both virtual and blended methods of instruction could lead to better reading and listening performances. However, the difference between the effect of each treatment was more tangible in one skill scores (reading in the virtual group and listening in the blended group). The point worth noting is that the blended group could significantly outperform the other two groups. Comparing the results of all post-tests in reading and listening, it was revealed that blended instruction could result in better reading and listening; however, reading skill was more affected due to the higher mean difference between pre-test and post-test scores. This study has some implications for language teachers in taking advantage of technology in education in a balance with their traditional styles of teaching.