Homogeneity Test Research Finding

No. Questions Strongly Disagree Percentage Disagree Percentage Agree Percentage Strongly Agree Percentage 3. Learning narrative text by using mind mapping technique is fun. 3.7 18.5 55.6 22.2 4. Understanding of the concept about mind mapping in learning narrative text. 3.7 22.2 59.3 14.8 5. Mind mapping technique helps students to understand narrative text. 25.9 40.7 33.3 6. Mind map helps students to remember information based on the narrative text that is read. 3.7 11.1 25.9 59.3 7. Ability to retell the narrative text that you construct into a mind map. 3.7 7.4 14.8 74.1 8. Mind mapping techniques makes it easier to learn narrative text. 3.7 11.1 74.1 11.1 9. Motivation to learn narrative text after using mind mapping technique. 3.7 7.4 63 25.9 10. The satisfaction of reading understanding after using mind mapping technique. 3.7 22.2 66.7 7.4 As revealed in table 4.20, the majority 74.1 of the students disagreed that reading narrative text was fun, while 66.7 of them agreed that mind mapping technique was better than the previous technique used to learn narrative text. Also, 63 of the students were more motivated to learn narrative text after using mind mapping technique. Almost half 40.7 of the students agreed and 33.3 of them strongly agreed that mind mapping technique helped them to understand narrative text.

B. Interpretation

The pretest mean score in experimental class was 82.04, and after given 4 treatments using Mind Mapping technique, the posttest mean score in experimental class was 84.81. Meanwhile, in control class showed that the pretest mean score was 85.74. And after given 4 treatments without using mind mapping technique, the posttest mean score was 82.04. Therefore, the students who received higher scores in experimental class were more than the students in control class. The increase of the mean score in experimental class can be based on the quality of learning process that get better, because the students ability to understand the material is developed well, the students may also enjoy the learning process. While the decrease of the mean score in control class was because the learning process was monoton, the students were less involved to be active in the process which make them did not enjoy the lesson. After finding the mean score in both of the classes, the writer made sure that the data were distributed normally and homogeneous. In experimental class, the value 0.599 for pretest and 0.301 for posttest was found through normality test. And in control class, the value 0.404 for pretest and 0.106 for posttest was found. All of the values were higher than 0.05 which means that the data were distributed normally. It means that there was balance distribution between the students who get low, middle , and high score. In homogeneity test, the value 0.56 for pretest and 0.88 for posttest was gained. This result shows that in both of pretest and posttest, the data between experimental class and control class was homogeneous as the values were higher than 0.05. It means that the dispersion was relatively similar between the experimental and control class.

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