Research Instrument RESEARCH METHODOLOGY

word choice, sentence fluency, and grammatical convention is weighted separately and the student is given a breakdown on specific features of the writing sample. 10 It meant that t o score students’ writing using this analytic scoring, it must be decided on the several aspects of writing which had the number of points in each aspect to be added together to be a total score. Moreover, this analytic scoring could gain reliability. Weigle adds that analytic scoring can be more reliable than holistic scoring because reliability will increase when additional items are added to a separate-point test, so a scoring scheme which has multiple scores are given to each students’ a piece of writing tends to improve reliability. 11 To assess the eighth grade students’ narrative writing, the writer used the analytic fictionnarrative writing content rubric from Vicki L. Kohen and John Edwin Cowen’s rubric which was modified by the researcher to suit her own purposes. The writing rubric was provided in the appendix. Furthermore, the writing rubric was suited to the level of the students and the purpose of the test.

G. Technique of Data Collecting

After creating the instrument, the researcher collected the data. The data was obtained from the result of both control and experimental class which was given writing narrative test pretest and posttest based on the material that was arranged appropriately to the syllabus. A test technique was used in this research because it is a technique of data collecting in quantitative research which uses instrument. 12 10 Vicki L. Kohen and John Edwin Cowen, Literacy for Children in an Information Age:Teaching Reading, Writing, and Thinking, New York: Wadsworth Cengage Learning, 2009, p. 358 11 Sara Cushing Weigle, op-cit, p. 121 12 Tim Penyusun Pedoman Penulisan Skripsi FITK, Pedoman Penulisan Skripsi, Jakarta: FITK, 2013, p. 65.

H. Technique of Data Analysis

1. Prerequisite Analysis Test

Analysis of research data aims to test the truth of hypothesis which is suggested in a research. However, before hypothesis testing is done, it is a must to do prerequisite analysis data through normality test and homogeneity test.

a. Normality Test

Normality test is a test which is done to check whether a group of data comes from population having normal distribution or shapes normal curve. 13 The normality test is crucial to do because the calculation of parametric statistic has assumption or requirement that research data must be distributed normally. To test the normality of the data, the researcher used IBM SPSS Statistics 19 and the steps were as follow: 1 Formulating normality hypothesis of the data; H : sample data was normally distributed, while H 1 : sample data was not normally distributed. 2 Testing the normality of the data using Lillieforse Test, and the steps accoding to “7 Langkah Mudah Melakukan Analisis Statistik Menggunakan SPSS 17 by C. Trihendradi 14 are as follow:

a. Click Analyze = Descriptive Statistics = Explore on the menu

until the Explore dialogue box appears. b. Fill the variable in the Dependent List box and fill the other variable in the Factor List 13 Yusri, Statistika Sosial, Yogyakarta: Graha Ilmu, 2009, p. 139 14 C. Trihendradi, 7 Langkah Mudah Melakukan Analisis Statistik Menggunakan SPSS 17, Yogyakarta: Penerbit andi, 2009, p. 71

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