تاثیر آماده سازی واژگان بر روی پیشرفت درک شنیداری فراگیرندگان زبان انگلیسی بعنوان زبان دوم و اعتماد بنفس آنها

abstract recent studies suggest that prelistening activities play an important role in the development of listening comprehension (e.g. long 1990;chiang and dunkel 1992; schmidt-rinehart 1994; jensen and hansen 1995; robinson et al., 1995; buck, 1995; foster and skehan,1996; teng 1996; robinson, 2001; chang and read 2006). in line with previous studies and to shed light on a new aspect of schemata-building, this study tried to investigate the effect of vocabulary preparation on efl learners listening comprehension development and their confidence level. the sample consisted of a total of 36 freshman english language and literature majors at semnan university divided into experimental and control groups. both groups took listening comprehension pretest and posttest. the participants in the experimental group were given the vocabulary list at each session as a prelistening activity, and after the treatment, they filled in a questionnaire concerning their confidence. subjects’ scores in experimental group were compared to those in control group. the results of the t-test (observed-t) revealed that the experimental group outperformed the control group. the students’ overall responses also indicated a positive view towards vocabulary preparation. it is concluded that the preparation of vocabulary like many other prelistening activities contributes to the development of listening comprehension ability. it also influences the learners’ confidence for further cognitive and affective involvement. key words: efl learners, listening comprehension, vocabulary preparation, confidence