ABSTRACT
THE EFFECT OF USING SCIENTIFIC APPROACH ON STUDENTS’ VOCABULARY ACHIEVMENT AT GRADE EIGHT OF
SMP MUHAMMADIYAH KENDARI
BY
DEMAULID (A1D4 09 080)

This study was conducted to investigate the effect of using Scientifics Approach on Students’ vocabulary achievement at grade eight of SMP Muhammadiyah Kendari. The research question of this study was “Is there any significant effect in using of Scientific Approach to increase the students’ vocabulary achievement at grade eight of SMP Muhammadiyah Kendari?” The objective of the study is to find out data and information whether there is a significant effect in using of Scientific Approach to increase the students’ vocabulary achievement at grade eight of SMP Muhammadiyah Kendari.
The design of study was a pre-experimental design that consists of one group pre-test and post-test. The population of this study was all students at the Grade eight of SMP Muhammadiyah Kendari who registered in academic year 2017/2018. The sample of this study was taken by using random sampling which consisted of 30 students. The instrument of this study was vocabulary test which consisted 40 items. The researcher collected the data by giving pre-test to see students’ prior knowledge, giving treatment which the researcher conducted teaching and learning process by using Scientific Approach, and giving post-test to see students’ vocabulary achievement after being taught by using Scientific Approach. The researcher used one group pre-test and post-test Sample T-test to analyze the result of the study of the effect of using Scientific Approach for improving the students’ vocabulary achievement.
The result of study shows that there is a significant effect in teaching vocabulary through the use of Scientific Approach at grade eight of SMP Muhammadiyah Kendari. It is indicated by the result of hypothesis testing which proves that t-test = 25.36 is higher than t-table = 2.04. This means that there is a significant effect in teaching vocabulary by using Scientific Approach at grade eight of SMP Muhammadiyah Kendari. It is also indicated the average of students’ vocabulary achievement before using Scientific Approach was 4.99. It means that the average of students’ vocabulary achievement before using Scientific Approach in teaching vocabulary at grade eight of SMP Muhammadiyah Kendari is in low category. Meanwhile, the students’ vocabulary achievement after using Scientific Approach was 7.59. It means that the average of students’ vocabulary achievement after being taught through the use Scientific Approach is in high category. This finding shows that in teaching vocabulary by using Scientific Approach improve students’ vocabulary achievement at grade eight of SMP Muhammadiyah Kendari.



Keywords: Scientifics Approach, Vocabulary Achievement