<![CDATA[In an educational environment, students who can manage their emotions effectively usually have better learning achievements and are able to establish positive social relationships, be calmer in responding to situations and overcome challenges that arise. This study adopted a quantitative method that prioritizes information in the form of numbers. The research design used is an experimental type, and more specifically adopted a quasi-experimental design. The purpose of this study is to provide how effective group counseling services with the Rational Emotive Behavior Therapy (REBT) approach are in improving the emotional regulation abilities of class X students of SMAN 4 Pandeglang in the 2025/2026 academic year. The population in this study was 455 class X students at SMAN 4 Pandeglang. The sample in this study was 82 students who were given an emotional regulation questionnaire, then 20 students were selected with low scores. In this study, the subjects were divided into two groups: the experimental group and the control group. The experimental group received intervention in the form of a counseling group implemented through the Rational-Emotive Behavior Therapy (REBT) approach and the control group received no treatment at all. The data collection technique used was an emotional regulation questionnaire compiled by the researcher while the data analysis technique used a normality test, homogeneity test and T test. The results of the study showed that after being given treatment there was a difference in the average score of the pretest and posttest. Hypothesis testing used the results of the T test. Sig (2-tailed) was 0.001 <0.05 which means the hypothesis was accepted. The interpretation that can be seen is that there was a difference in the emotional regulation scores of the control and experimental classes. Thus, students' emotional regulation improved after being given treatment in the form of group counseling services. Based on the results of the study, it can be concluded that the use of group therapy with the Rational Emotive Behavior Therapy (REBT) method has proven effective in improving students' emotional regulation abilities.]]>
