lexical collocation

The present study explores the impact of corpus-based collocation instruction on intermediate Iranian EFL learners' writing ability. For this study, 84 Iranian learners, studying English as a foreign language in Bayan Institute, Iran, were selected and were randomly divided into two groups, experimental and control. Conventional methods of writing instruction were taught to the control group while the experimental group received corpus-based collocation instruction in writing essays for 15 sessions. The design of the research was based on pre- and posttest method. The tests were employed to measure the writing fluency of the two groups. Test results were scrutinized to answer a major question for correlation between the participants’ variety of corpus-based collocations and their writing. The results illustrated that there was a significant difference between the mean scores of control and experimental groups in writing elements (p<0.05). Actually, lexical collocation instruction expanded the writing elements of vocabulary and mechanics rather than grammar and fluency in writing essays. The study findings indicated that there is a significantly positive correlation between the participants’ use of various lexical collocations and their writing proficiency.

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 Multiple-choice 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.

Lewis (1993) recognized significance of word combinations including collocations by presenting lexical approach. Because of the crucial role of collocation in vocabulary acquisition, this research set out to evaluate the rate of collocations in Iranian EFL learners' writing production across L1 and L2. In addition, L1 interference with L2 collocational use in the learner' writing samples was studied. To achieve this goal, 200 Persian EFL learners at BA level were selected. These participants were taking paragraph writing and essay writing courses in two successive semesters. As for the data analysis, mid-term, final exam, and also the assignments of L2 learners were evaluated. Because of the nominal nature of the data, chi-square test was utilized for data analysis. Then, the rate of lexical and grammatical collocations was calculated. Results showed that the lexical collocations outnumbered the grammatical collocations. Different categories of lexical collocations were also compared with regard to their frequencies in EFL writing production. The rate of the verb-noun and adjective-noun collocations appeared to be the highest and noun-verb collocations the lowest. The results also showed that L1 had both positive and negative effect on the occurrence of both grammatical and lexical collocations.