THE EFFECTIVENESS OF USING COMPUTER-BASED INSTRUCTION (CBI) OF SIMULATION MODEL TYPE TO IMPROVE STUDENTS’ ABILITY IN WRITING NEWS ITEM TEXT AT THE TENTH GRADE STUDENTS OF SMA N 3 PURWOREJO IN THE ACADEMIC YEAR OF 2012/2013

Abstract

This research is quantitative research by using experimental method. The objective of the research is to find out whether computer-based instruction (CBI) of simulation model type is effective or not to improve students’ ability in writing news item text at the tenth grade students of SMA N 3 Purworejo in the academic year 2012/2013. The population of the research was the tenth grade students of SMA N 3 Purworejo by taking the sample from the two classes. The first class was X.3 which consisted of 32 students as control group. The second class was X.4 which consisted of 32 students as experimental group. This research used the purposive sampling. In short, the use of computer-based instruction (CBI) of simulation model type is effective. It could be proven by the computation of the t-test. The computation showed that the t-value was higher than t-table. The t-value was 4.328; also, the t-table which used 5% (0.05) alpha level significance was 1.9990. It meant that 4.328>1.9990. Besides, the mean score of experimental group was raised after given the treatment from 61.875 to 72.25. Hence, using computer-based computer (CBI) of simulation model type is effective to improve students’ ability in writing news item text.

Keywords: Effectiveness, CBI, Simulation Model, Writing Ability