Keefektifan Teknik Concept Mapping dalam Peningkatan Kompetensi Menulis Karangan Eksposisi Peserta Didik SMA

This study aims to determine the effectiveness of the use of
concept mapping techniques in improving the competence of
writing exposition essays for class X SMA Negeri 1 Kasihan
Bantul. This study uses an experimental approach. The
experimental design used was Randomized Pretest-Posttest
Control Group Design. There are two kinds of research
variables, namely one independent variable in the form of
concept mapping techniques and one dependent variable in the
form of students' exposition writing competence. The sampling
technique used is simple cluster random sampling. Collecting
research data through the non-test method in the form of an
assignment to write an exposition. The research instrument
used was an essay assessment sheet accompanied by a rubric.
The validity of the instrument used in this study is content
validity in consultation with experts (expert judgment).
Interrater technique was used to test the reliability of the
instrument. The data analysis technique used t-test. The results
showed that: (1) there was a significant difference between
students' exposition writing competence before being taught
using the concept mapping technique and after using the
concept mapping technique with sig (p) < 0.05.