The Population and the Sample

D. The Instrument of the Research

To obtain the data in this research, the writer gave the students pre-test and post-test for both control class and experiment class. The instrument that was used for this research was test which was developed by the writer for both control class and experimental class. The material of test that was used for pre-test and post-test was developed from syllabus of English lesson at the second year students of junior high school, and then it was expanded by the writer into several points of indicator to make the test, it can be said as test specification or kisi-kisi 5 . The test consisted of 25 questions in multiple choices. 6 The score per items was 4. It means if students could choose the answer of 1 item correctly, they would get 4 score. And if they could choose the answer of 25 items correctly, they would get 100 as the highest score. The test that was used for both pre-test and post-test was taken from the same test specification, and the writer divided the test specification into three general materials that consisted of several indicators. And from each indicator, the writer made a number of questions based on the content of its indicator. The first material talked about Positive Degree which consisted of two indicators; to show the sentence in positive degree form three questions and to choose the appropriate adjective in positive degree sentences three questions. The second material talked about the Comparative Degree which comprised three indicators; to identify the sentence of comparative degree correctly three questions, to choose the appropriate adjective in sentence of comparative degree three questions, and to differ the adjective that uses suffix -er and additional more correctly three questions. And the last material talked about Superlative Degree which also consisted of three indicators; to identify the sentence of superlative degree correctly three questions, to choose the appropriate adjective in superlative degree sentence four questions, and to differ the adjective that uses suffix -est and additional most correctly three questions. Thus, the total of questions was 25 items. 5 See Appendix 1. 6 See Appendix 2.

E. The Technique of Data Collecting

The technique of data collecting explains what technique which is used by the writer to obtain the data about the variable or focus of the research; in the quantitative research, the technique of data collecting is divided into test and non test. 7 The technique of the test such as: achievement test, potential test and IQ test. Meanwhile, technique of non test is used to measure the performance of individual typical, for example: the questioner about the kind of jobs, religion, hobby, etc, interview, observation, and documentation. The technique of data collecting that was used in this research are test which is divided into: a. Pre-test The writer gave a pre-test to the students before the treatment was done for both experiment and control class. As the writer have discussed in the instrument of the research, the form of the test that was given to the students was multiple choices that consist of 25 questions. The objective of giving pre-test is to know the basic knowledge of the students before the treatment was done. b. Post-test The last step was giving post-test to the students after the treatment is given for both experiment class and control class. The test that was used for post test were the same as the test that was used for pre-test. It was multiple choices that consist of 25 questions. The objective of giving post- test is to know students’ learning achievement after the treatment is given. 7 Kadir. op. cit., p. 65.