The Effect of Audio-Visual Materials on Iranian Second Grade High School Students’ Language Achievement

Abstract

The present study investigated the effect of audio -visual materials on Iranian second grade high school students’ language achievement. The participants were 80 Iranian female students with the age of 15-16 that were selected from high schools in Savadkooh, north of Iran. The administration of the OPT test and taking the result a homogeneous group of 60 was formed and 20 participants were excluded from the study. Participants were randomly selected into two homogeneous groups each consisting of 30students. Both of the groups were taught the same materials. The control group received the traditional treatment without the audio-visual materials while the experimental group received the audio-visual materials treatment. Before starting the treatment two similar tests based on high school English text book 2 were prepared by the researcher as the pretest/posttest to find out students language achievement at the beginning and at the end of the study. Analysis of this study and the results in the posttest showed significant differences between the two groups. Also participants in experimental group received and answered the pre-test and post-test motivation questionnaire to find out the effect of audio-visual materials on improving students' motivation. The results indicated that the students in the experimental group performed better than the students in the control group in their language achievement. So, it was concluded that the role of audio-visual materials in teaching high school English textbook2 to students led to a higher level of improvement in students' motivation and language achievement.