The influence of the group investigation on students' critical thinking skills in physical education

The purpose of this research is to determine the effect of the Group Investigation learning model on students' critical thinking skills in physical Education learning. The method used was a true experiment with The Randomized Pretest-Posttest Control Group Design. 8th grade students of SMPIT Adzkia Sukabumi were the population in this study. Cluster random sampling was used with a sample size of 56 students. The research instrument used to collect data used a questionnaire with a 5-point Likert. Data analysis used paired sample t-test and independent sample t-test. The results of data analysis using the paired sample t-test in the experimental group showed a Sig. 0.00<0.05 and in the control group Sig. 0.065>0.05. Based on the results obtained, Group Investigation had a significant effect on improving students' critical thinking skills.Meanwhile, the Direct Instruction does not have a significant influence on improving students' critical thinking skills.The results of the independent sample t-test show Sig. 0.00 < 0.05. Based on these results, Group Investigation is more effective in improving students' critical thinking skills when compared to Direct instruction. The conclusion of this research is that the Group Investigation learning model has a significant influence on improving students' critical thinking skills in physical education learning.