The Impact of Lexical and Syntactic Simplification of Materials on Listening Comprehension of Intermediate EFL Learners

The aim of this study was to investigate the impact of lexical and syntactic simplification of materials on listening comprehension of intermediate EFL learners and to see whether or not there was any significant difference between learners who listen to authentic materials and those who listen to simplified ones. It was also intended to compare the lexically-simplified-material group with the syntactically-simplified-material group in order to examine which type of simplification leads to a greater gain in listening comprehension. To this end, three hundred Iranian EFL intermediate learners from different language institutes in Sari participated at the onset of the study. To choose a homogeneous sample, an OPT was administered and 150 subjects were selected. Then they were randomly assigned into 3 groups, one control group and two experimental groups. A pretest of listening was administered to assess the initial status of the participants. Then, the intervention was given for two hours in ten sessions. The control group listened to authentic materials, but the two experimental groups listened to lexically and syntactically simplified materials, respectively. Afterwards, a posttest was administered to compare the groups to see how much they improved. The scores of the three groups were analyzed through ANOVA. The results revealed a significant difference among the control group and the two experimental groups. Moreover, the group who listened to syntactically simplified materials outperformed the group who listened to lexically simplified materials.