Research Paper
Year: 2020 | Month: November | Volume: 7 | Issue: 11 | Pages: 106-110
Students' Critical Thinking Skill through Group Investigation Learning Method at SMK West Java
Mahisa Silmi Abdul Karim1, Suwatno2, A. Sobandi3
1Universitas Pendidikan Indonesia, 2Universitas Pendidikan Indonesia,3Universitas Pendidikan Indonesia.
Corresponding Author: Mahisa Silmi Abdul Karim
ABSTRACT
This research is motivated by the low critical thinking skill of students. From the results of school observations at SMKN 1 Bandung, there are still students who have low critical thinking skill in the subject of Civil Service Automation, especially for class XI OTKP who choose the subject of Automation of Personnel Governance as a vocational subject. The purpose of this study is to determine whether the use of the Group Investigation method affects the level of critical thinking skill in students, whether the initial ability affects the level of critical thinking in students, whether there is an interaction effect of the Group Investigation method and the initial skill of students' critical thinking skill. The method used in this research is Quasi Experimental with Non Equivalent Control Group Design. The purposive sampling technique was used in the sample selection, namely Class XI OTKP 3 as the experimental class totaling 34 people and class XI OTKP 4 as the control class totaling 33 people. The results of the post-test analysis showed that the data on students' critical thinking scores. Distributed normally and homogeneously so that one way ANNOVA Parametric Inferential statistical test was carried out. The results of the hypothesis test showed that the learning method variable obtained F value = 11.101 and p = 0.002 <0.05, meaning that the first hypothesis test was accepted, that there were differences in students' critical thinking skill using the Group Investigation method with the lecture method. Based on the N-Gain critical thinking skill, it can be concluded that there are differences in the critical thinking skill of students before and after using the Group Investigation method in the experimental class with a high categorized increase. It can be concluded that the Group Investigation learning method has an effect on improving students' critical thinking.
Keywords: Critical Thinking Skill, Group Investigation, SMK West Java.
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