Intervention of the Study The Population and Sample of the Research The Instrumentof the Research

the outcomes differ between the experiment class and control class. Here, writer used the t-test to prove the hypothesis. The formula of t-test was: 11 In which: : Mean of post-test of experiment class : Mean of post-test of controlled class SE : Standard error of experiment class SE : Standard error of controlled class X : Using Reciprocal Teaching Technique in Experiment Class Y : Using Conventional Technique in Control Class The procedures of calculation were as follow: 1. Determining men of variable X the formulation is: = ∑ 2. Determining men of variable Y the formulation is: = ∑ 3. Determining Standard Deviation X SDx, with formula: √ ∑ 4. Determining Standard Deviation Y SDy, with formula: 11 AnasSudijono, PengantarStatistikPendidikan, Jakarta: PT. Raja GrafindoPersada, 2010, p. 314. √ ∑ 5. Determining Standard Errors Mean Variable X SEmx, with formula: √ 6. Determining Standard Errors Mean Variable X SEmx, with formula: √ 7. Determining the difficulties of Mean Variable X and Mean Variable Y, with formula: √ After all of the data are calculated, the last procedure is determining df degree of freedom with formula: df= N1+N2 -2 In where: M : The Average of Student Score SD : Standard Deviation SE : Standard Errors X : Experiment Class Y : Controlled Class N : Total of the Students df : degree of freedom

H. The Hypotehesis of Statistic

1. : ≠ 2. : - =0 26 CHAPTER IV THE RESEARCH FINDING In this chapter, the writer presents the description of the data, the analysis of the data and the interpretation of the data.

A. The Description of the Data

After conducting the research, the writer obtained two kinds of the data; there are pre-test and post-test scores: Table 4.1 The Score of Pre-test, Post-test and Gained Score of Experiment Class. Students Pre-test Post-test Gained Score X 1 33 67 34 2 67 83 16 3 23 63 40 4 43 67 24 5 20 77 57 6 37 60 23 7 43 73 30 8 70 83 13 9 43 73 30 10 40 83 43 11 33 73 40 12 23 60 37 13 37 63 26 14 57 80 23 15 50 73 23 16 47 70 23 17 20 63 43 18 40 77 37 19 23 60 37 20 20 67 47