research are audio-video media and audio only media. This will be evaluated by IMMS questionnaire.
3.4 Setting
This study was held in Perdana Vocational School that located in Jl. Slamet Riyadi No.10 subdistrict Gayamsari, Semarang city, Central Java. It was done in
XI-MUA and XI-MUB classrooms during the English lessons in the academic
year of 2014 2015.
3.5 Scope of the Study
The scope of the study was focus on the listening comprehension activities used audio-video media and audio only media. The researcher used both of media to
teach listening. It was done to find out whether the use of audio-video media gave better effect on students‟ motivation in listening comprehension activities
compared to audio only media.
3.6 Population
Arikunto 2006:130 states that “a population is a set or collection of all
elements processing one or more attributes of interest. ” While according to
Tuckman 1978 “population is a group about which the researcher is
interested in gaining information and drawing conclusions. ” The population of
this research was the eleventh grade students of multimedia at Perdana Vocational School in the academic year of 20142015.
3.7 Sample and Sampling Technique
According to Arikunto 2006:131
“a sample is part of representation of population being assessed. When it is impossible to investigated all of the
population, it i s allowed to take the sample of population.” Therefore, sample is
subjects that can be used in a reasearch to represent the population. In this research, cluster random sampling was chosen.
“The selection of groups, or clusters of subjects rather than individuals is known as cluster random
sampling ” Cohen, Manion, Morrison 2007:95. Cluster random sampling is
easy to be applied in school. It does not need much time to hold the sampling. In this study, XI Multimedia Unggulan A XI MUA was chosen as the
control group, and XI Multimedia Unggulan B XI MUB was chosen as the experimental group. This selection was suggested by the teacher of English of
Perdana Vocational School. There were some reasons why these two classes were chosen, the first was because the amount of the students in XI MUA and XI MUB
were same, and the second, their ability in English were similar.
3.8 Instrument of the Study