Improving Students’ Reading Comprehension on Narrative Text by

out the effect of certain treatment on other. 1 And because the sample of this research is not selected randomly, the Quasi Experimental Design is used as the design of this research. As stated by Creswell that when the sample of the research is not taken randomly, then the procedure is called quasi-experiment. 2 In order to find out whether or not the SQ3R method has the influence on students‟ reading comprehension, a Quasi Experimental Design is used in this study. There are two kinds of designs in Quasi Experiment; Time Series Design and Nonequivalent Control Group Design. 3 In this case, the writer used Nonequivalent Control Group Design. The Nonequivalent Control Group Design is a quasi-experimental research design where the treatment was given only to the experimental group, while the pre-test and post-test are given to both of the control group and experimental group, and the control and experiment group are not selected randomly. 4 To be concluded, a quantitative method was used as a method for this research, while the design of the research was Quasi Experimental by using Nonequivalent Control Group Design.

C. Population and Sample of the Research

1. Population

Population is a large group where the generalization of sample is established. 5 The population of this study was 427 10 th grade students of SMAN 7 Tangerang Selatan which were divided into 10 classes start from X IPA 1-XI IPA 6 and X IPS 1-X IPS 4.

2. Sample

Sample is a subset or smaller group of total population for the researcher to collect the data which have certain knowledge to become the 1 Sugiyono, Metode Penelitian Pendidikan, Pendekatan Kuantitatif, Kualitatif, dan RD, Bandung: Alfabeta Publisher, 2013, p.34 2 John W. Creswell, Research Design: Qualitative, Quantitative, and Mixed Method Approaches: Third Edition, USA: Sage Publication, Inc., 2009, p. 155. 3 Sugiyono., op.cit., p. 114 4 Ibid., p. 116 5 Donald Ary, Lucy Cheser Jaccobs, Chris Sorenssen, Introduction to Research in Education, Eigth Edition, USA: Wadsworth, Cengage Learning, 2010, p. 148.