The objective of this research is to find out whether or not Collaborative Learning Strategy (CLS) affects students in their reading comprehension. This study was pre-experimental and involved one group pre-test and post-test. This research took place at Madrasah Arifah Gowa in the 2020/2021 academic year. The population of this research was first-grade students. The researcher used the total sampling technique in selecting the samples which consisted of 26 students as respondents. This research used a quantitative method design. The researcher used to read test as the research instrument. The technique data collection was pre-test and post-test. The results of students’ reading scores from pre-test to post-test demonstrate a significant difference. It is found that Sig.(2-tailed) is 0.000 < from 0.05. The results show that the mean score of pretests is 63.65 with a standard deviation of 7.81, while the mean score of post-tests is 76.34 with a standard deviation of 9.54. It means that there is an effect of the implementation of the Collaborative Learning Strategy in teaching reading comprehension to students of Madrasah Arifah Gowa.
                        
                        
                        
                        
                            
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