درخت حوزه‌های تخصصی

Validation is an important enterprise especially when a test is a high stakes one. Demographic variables like gender and field of study can affect test results and interpretations. Differential Item Functioning (DIF) is a way to make sure that a test does not favor one group of test takers over the others. This study investigated DIF in terms of gender in the reading comprehension subtest (35 items) of a high stakes test using a three-step logistic regression procedure (Zumbo, 1999). The participants of the study were 3,398 test takers, both males and females, who took the test in question (the UTEPT) as a partial requirement for entering a PhD program at the University of Tehran. To show whether the 35 items of the reading comprehension part exhibited DIF or not, logistic regression using a three step procedure (Zumbo, 1999) was employed. Three sets of criteria of Cohen’s (1988), Zumbo’s (1999), and Jodin and Girel’s (2001) were selected. It was revealed that, though the 35 items show “small” effect sizes according to Cohen’s classification, they do not display DIF based on the other two criteria. Therefore, it can be concluded that the reading comprehension subtest of the UTEPT favors neither males nor females.

مطالعه حاضر کاربرد گفتگوی با خود توسط فراگیران زبان انگلیسی را در ساماندهی فعالیت های ذهنی آن ها بررسی می کند. برای این هدف موارد گفتگوی با خود 30 زبان آموز سطح متوسط بزرگسال در حین انجام فعالیتی حاوی معماهای چالش برانگیز به زبان انگلیسی ضبط شد. سپس موارد گفتگوی با خود زبان آموزان از نظر شکل، محتوا و کاربرد مورد بررسی قرار گرفت. نمونه های متعددی از بلند خوانی، تکرار، توضیح برای خود و همچنین مرور مطالب نشان می دهد که گفتگوی با خود در هدف گذاری، مدیریت ذهن، انگیزش و کنترل اضطراب نقش دارد. به علاوه، نتایج کاربردهای مفید گفتگوی با خود از قبیل هدف گذاری، مدیریت ذهن، انگیزش و کنترل اضطراب را در میان بسیاری دیگر نشان می دهد. این مطالعه بر آموزش کاربردهای گفتگوی با خود به زبان آموزان تاکید می کند و همچنین مدرسین را به هنگام سکوت فراگیران در فرایند آموزش زبان خارجی به صبر دعوت می نماید.

Incidental vocabulary learning is often seen as superior to direct instruction on many occasions. Meanwhile, upon the emergence of the World Wide Web, second language (SL) learners have been introduced to 'podcasts' (recorded audio and video online broadcasts) which could be authentic sources of vocabulary learning. The relatively recent phenomenon of video podcast (vodcast) might be considered as a reliable complementary source of input to the written text or the audio track which are predominantly used to represent the platforms of SL instruction. To examine this assertion, three groups of Iranian EFL learners (n=63) were independently exposed to different modes of input (the reading text, audio track, and vodcast) during a series of classroom sessions under highly controlled circumstances. Immediate and delayed passive recall tests of vocabulary were administered to investigate their incidental gains. A multivariate analysis of variance revealed that both dependent variables (immediate and delayed recall) were significantly affected by the input modes. The post-hoc tests indicated no significant difference between the written and the audio groups while the vodcast group significantly outperformed the other two. The rich contextual clues made available by this audiovisual source seem to account for its superiority

This study was inspired by VanPatten and Uludag’s (2011) study on the transferability of training via processing instruction to output tasks and Mori’s (2002) work on the development of talk-in-interaction during a group task. An interview was devised as the pretest, posttest, and delayed posttest to compare four intervention types for teaching the simple past passive: traditional intervention as the comparison group and three task-based groups were processing instruction, consciousness-raising, and input enhancement. The interviews and the interactions during the treatments were also analyzed qualitatively. Task-based instruction (TBI) proved significantly more effective than traditional intervention and processing instruction significantly outperformed all others on both posttests. Furthermore, processing instruction was the only task-based intervention to retain its improvement till the delayed posttest. Qualitatively, processing instruction led to true negotiation of meaning and deep-level learning, consciousness-raising led to massive negotiation over the function of the target structure and deep-level learning, input enhancement led to enormous unfocused interaction about meaning, and traditional intervention just led to interaction about the forms. It was concluded that a well-planned processing instruction is a promising intervention for focusing on language form; however, due to the strong points cited for the other two tasks, their roles should not be ignored.