This study aimed to investigate the effect of using two types of dictionaries (monolingual and bilingual) on Iranian intermediate EFL learners' vocabulary learning. An OPT (Oxford placement test, 2001) was administered among 90 students 60 of whom were selected as the participants of this study. They were sophomore students studying English as a foreign language, with the age range of 19-27. They were then divided into two comparison groups: Monolingual Dictionary (MD) and Bilingual Dictionary (BD) groups. A pretest of vocabulary was administered to both groups. Then both groups were given a five-session treatment. One group was taught vocabulary based on monolingual dictionary, and the other group was taught vocabulary through bilingual dictionary. After the treatment, the same version of vocabulary test was given to both groups as posttest to check the effectiveness of the treatments. The results of Paired-Samples and Independent Samples t-tests revealed that the effect of monolingual dictionary on learners' vocabulary learning was more than that of the bilingual dictionary use. The implications and recommendations will also be presented.

Researchers have extensively studied factors that impact the development of fluency in L2 oral production while there is scant evidence regarding task variation-related effects. Therefore, this study sought to investigate the effects of task variation involving group dialogue, dialogue unscrambling, and dialogue completion on Iranian EFL learners' oral speech fluency. To this end, 80 EFL learners were assigned to three experimental groups (EXG1, EXG2, and EXG3) and one control group shown as CONG. The EXG1 was treated by three tasks, i. e., dialogue completion, dialogue unscrambling, and group dialogue, the EXG2 through two tasks involving dialogue completion and dialogue unscrambling, the EXG3 by dialogue unscrambling task, and the CONG was instructed by teacher conventional method. The groups were pretested and posttested through the speaking section of Preliminary English Test (PET). The participants' interview transcriptions were then coded for scoring and statistical analysis of fluency to show the effects of treatment for each group. The four groups received their required instructions for ten sessions. The findings revealed that task variation made significant differences in the learners' oral fluency achievement. The analyses made through running ANOVA and Post Hoc yielded to the conclusion that EXG1, instructed through a combination of the three tasks, outperformed the other groups regarding fluency achievement. The findings of this study have pedagogical implications for teachers, EFL learners, and syllabus designers.

Abstract-This study aimed to investigate the effect of teaching two types of tasks (multiple-choice item and sentence-writing) on Iranian EFL learners' vocabulary learning. For this purpose, sixty students were selected out of ninety through the administration of a Comprehensive English Language Test (CELT).They were junior translator trainees with the age range of 22-26. They were then divided into two comparison groups. A pretest of vocabulary was administered to both groups. Then both groups were given a five-session treatment. One group was taught vocabulary based on sentence-writing task, and the other group was taught vocabulary through multiple-choice task. After the treatment, the same version of vocabulary test was given to both groups as posttest to check the effectiveness of the treatments. The results of paired-samples and independent samples t-tests revealed that the effect of sentence-writing task on learners' vocabulary learning was more than that of the multiple-choice task. The implications and recommendations will also be presented.

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Within the realm of lexis, the area of collocation is of prime importance to producing natural-sounding language for anyone learning a foreign language. This study aimed at investigating the effects of two modes of sentence writing versus multiple-choice test practice manipulation on Iranian intermediate EFL learners' lexical collocation learning. For this purpose, to ensure the homogeneity of the participants, Preliminary English Test (PET) was administered to 87 students studying English at two English institutes of Ofoghhaye Nour and Nourmahdi in Roudsar, Guilan, through which 60 students were selected as the target participants. They were intermediate students with the age range between 17 and 23. They were then divided into two equal comparison groups: Sentence-writing Group (SRG) and Multiplechoice Group (MCG). A piloted pretest of lexical collocation was administered to both groups. Then both groups underwent a 7-session treatment. SRG was treated by the virtue of sentence-writing practice for the target collocations, and MCG was instructed through recognition practice, here multiple-choice practice. After the treatment period, the same version of lexical collocation test was administered to both groups as posttest to examine the effectiveness of the treatments. The results of paired-samples and independent samples t-tests indicated that both groups had collocation gains but the effectiveness of multiple-choice test manipulation on learners' lexical collocation outweighed that of the sentence-writing mode of test practice manipulation. The implications and recommendations were also presented.