Data Analysis and Interpretation 1. Normality of the Data

The following are the steps in measuring Product Moment coefficient of correlation. 19 a. Formulating alternatives hypothesis H a and null hypothesis H o . 1 Measuring Product Moment coefficient of correlation of variable X and Y by using formula 20 : г= ∑ ∑ ∑ √{ ∑ ∑ }{ ∑ ∑ } Notes: ∑ : sum of the X score ∑ : sum of the Y score ∑ : sum of the squared students’ adjective mastery score ∑ : sum of the squared students’ writing descriptive ability score ∑ : sum of the products of paired X and Y scores N : number of paired score The hypotheses are: Ho = there is no correlation of students’ mastery in using adjective and their ability in writing descriptive text. Ha =there is correlation of students’ mastery in using adjective and their ability in writing descriptive text. This is criteria of hypothetical test: 19 Anas Sudijono, Op.Cit., p.194-195. 20 Suharsimi Arikunto,Op.Cit.,p.317 H a is accepted if r observed r critical with = 0.05 5. H o is accepted if the score of r observed r critical . 21 To know the correlation between students’ mastery in using adjective and their ability in writing descriptive text, the writer used the criteria as the following table. Table 7 r Value Interpretation 22 r value Interpretation 0.800-1.00 Very high correlation 0.600-0.800 High correlation 0.400-0.600 Medium correlation 0.200-0.400 Low correlation 0.00-0.200 Very low correlation 21 John W. Best and James V. Kahn,7 th edition, Research in Education, New Delhi, Prentice-Hall, 1995, p. 384 22 Suharsimi Arikunto, Op.Cit., p. 319.

CHAPTER IV RESULT AND DISCUSSION

A. Data Collection 1. Situation of SMPN 1 Talangpadang

SMPN 1 Talangpadang is standing on 1960 which is located in Jl. Darussalam Sinarsemendo Kecamatan Talangpadang. The activities of teaching learning process was done in the morning, the classes begin at the 07.30 A.M. And finish at 13.00 P.M.

2. Students’ Situation

Table 8 Students of SMPN 1 Talangpadang Academic year Class Total VII VIII IX Classes Students Classes Students Classes Students Classes Student s 20122013 4 143 4 136 4 142 12 421 20132014 4 146 4 129 4 130 12 411 20142015 4 144 4 142 4 132 12 418 20152016 4 138 4 131 4 141 12 411 20162017 4 130 4 137 4 135 12 402 Source: SMPN 1 Talangpadang Year 20162017

3. Teacher and Staffs’ Situation

This school is managed by structural. There are 40 people of the teachers and staff of SMPN 1 Talangpadang in 20162017 academic year, the detail information is as follows: Table 9 List of Teacher and staff of SMPN 1 Talangpadang 20162017 No Name Education Position Major 1 Hi. Subrata, S.Pd S1 Headmaster Sport 2 Muhadi Subono, S.Pd S1 Head of laboratory Science 3 Bernasari, A.Md D3 Teacher Mathematics 4 Zahara, S.Pd S1 Teacher Indonesian Language 5 Rudiyanto, S.Pd S1 Teacher Civics Education 6 Purwadi, S.Pd S1 Teacher Art 7 Sri Sukaptinah, S.Pd S1 Teacher Mathematics 8 Sundari, A.Md D3 Teacher Social 9 Partini, S.Pd S1 Teacher Mathematics 10 Susanti, S.Pd S1 Teacher Lampung Language 11 Sumisih,S.Pd S1 Teacher Computer 12 Sihardi, S.Pd S1 Teacher Social 13 Umi Kalsum, S.Pd S1 Librarian Indonesian Language 14 Yuniati, A.Md D3 Teacher English 15 Sutono,S.Pd S1 Deputy head of Mathematics curriculum 16 Toto Prayitno, S.Pd S1 Teacher Sport 17 Al Imron H.K, S.pd S1 Teacher Science 18 Irsanul Hamid, S.Pd S1 Teacher Social 19 Hayati,S.Pd S1 Teacher Indonesian language 20 Siti Hajiah, S.Pd S1 Teacher Science 21 Novery Eko. R, S.Pd S1 Teacher Art and Culture 22 Satriyati , A.Md D3 Deputy Head of Academic Civic Ed 23 Alaudin, S.Pd S1 Teacher Sport 24 Nurizawati, S.Pd S1 Teacher Art and Culture 25 Pri Haryanti, S.Pd S1 Teacher Civic Ed 26 Emawati, S.Pd S1 Administration Staff Guidance and Counseling 27 Tutik Herawati, S.Pd S1 Teacher Guidance and Counseling 28 Eni Fitriyani, S.Ag S1 Teacher Islamic Religion 29 Tati Komala, S.Pd S1 Teacher Science 30 Jumitri, S.Pd S1 Teacher Science 31 Maria Aswantari, S.Pd S1 Teacher Mulok 32 Efin Istiqomah, S.Pd S1 Teacher English 33 Astrid Dewi Wahyuningrat, S.Pd S1 Teacher English