Article RETRACTED due to manipulation by the authors The Effect of Physical Education (PE) Class Management Using Badminton Materials to Improve Elementary School (ES) Students’ Concentration

Concentration is needed for students to support successful learning achievement. Many students experience various concentration problems, especially in elementary schools. This disturbance can come from improper use of gadgets, including playing games excessively. The research was quantitative in nature. It employed a pre-experimental one-group pretest-posttest design. The research sample involved 14 students who were taken using a purposive sampling method. The data about students’ concentration were collected from two tests, a GTC test before and after an intervention. They were then analyzed using paired sample t-test and n-gain score. The results of the paired samples statistics test showed that the pre-test value was 46.57 and the post-test value was 55.00. This result indicates an increase in students' concentration scores descriptively. Following that, a t-test was conducted on the paired sample, yielding a Sig value. 0.256 > 0.05. This means that there is no significant difference between the pre-test and post-test in students' concentration scores. An effectiveness test was also performed by calculating the n-gain score. The finding showed an average value of 0.10 and was classified as low. The conclusion is that the implementation of descriptive badminton material PE class management can increase the concentration of elementary school students, but there is no significant increase between pre-test and post-test scores in the groups or classes given the intervention. It is indicated that the increase in students’ concentration is caused by the PE intervention with badminton sports material. This finding is also confirmed by previous research, which stated that a significant relationship exists between sports intensity and students' ability to concentrate on learning. Keywords: Class Management, PE, Badminton, Concentration, Elementary School.