THE CONTRIBUTION OF VOCABULARY MASTERY, READING INTEREST, AND LEARNING MOTIVATION TOWARD READING COMPREHENSION

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1 THE CONTRIBUTION OF VOCABULARY MASTERY, READING INTEREST, AND LEARNING MOTIVATION TOWARD READING COMPREHENSION THESIS Submitted to the Department of Language Studies, Graduate School of Muhammadiyah University of Surakarta in partial fulfillment of the Requirement for the Degree of Master of Education By FITRIANA NURUL KHOTIMAH ID No. S DEPARTEMENT OF LANGUAGE STUDIES GRADUATE SCHOOL MUHAMMADIYAH UNIVERSITY OF SURAKARTA 2018

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6 MOTTO Spirit no Limit Family is the best teacher Education is the most powerful weapon which you can use to change the world (Nelson Mandela) The Future Depends on What We Do In the Present (Mahatma Gandhi) vi

7 DEDICATION This thesis is dedicated to: My beloved Mom and Dad, My beloved brother and sister vii

8 ACKNOWLEDGMENT First of all, the writer would like to say Alhamdulillahi Rabbil alamin. Praise be to Allah SWT the Great Creator of the universe, the Most Gracious and the Most Merciful, just cause of the Almighty the researcher has been able to finish this thesis and only with His blessing this thesis can be accomplished. Invocation and peace may always be upon the holy prophet Muhammad SAW, may peace and blessing of Allah be awarded to him, his family and his companions. Amiien. The writer is sure that this thesis will not complete without the help of the other. Her special gratitude and appreciation go to Dr. Maryadi, M. A as the primary supervisor who has given a lot of help during the processing and finishing this thesis and Dr. Anam Sutopo, M. Hum as co-supervisor who has given a lot of guidance and encouragement, and also helped in correcting the grammar from the beginning until the completion of the thesis. The writer would like to express her deepest appreciation for all those who have given their hands to finish writing my graduating thesis. My thanks goes to the following persons: 1. Prof. Dr. Bambang Sumardjoko, M. Pd., as the Director of Graduate School of Muhammadiyah University of Surakarta; 2. Prof. Dr. Markhamah, M. Hum, the Head of Language Study Department; 3. Dr. Maryadi, M. A, as the primary supervisor who gives guidance, lot of knowledge, and criticism during the research conducted. 4. Dr. Anam Sutopo, M. Hum, as co-supervisor who gives guidance, great advice, and criticism during the research conducted. 5. Mauly Halwat Hikmat, Ph. D as the examiner who gives great advice and criticism about the research; 6. All of the lecturers and the staffs of Magister of English Language Program of Muhammadiyah University of Surakarta for all their knowledge, help and guidance during her study; 7. Librarians of the Magister Program for their help and service of the books; 8. Drs. Sunarto, M. Pd., as the Headmaster of MTs Negeri Surakarta II for giving permission to conduct the writer s research; viii

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10 TABLE OF CONTENT COVER... i PRIMARY SUPERVISOR S APPROVAL FORM... ii CO-SUPERVISOR S APPROVAL FORM... iii APPROVAL OF THESIS FOR SUBMISSION... iv STATEMENT OF AUTHORSHIP... v MOTTO... vi DEDICATION... vii ACKNOWLEDGMENT... viii TABLE OF CONTENT... x ABSTRAK... xiii ABSTRACT... xiv LIST OF FIGURE... xv LIST OF TABLES... xvi LIST OF APPENDICES... xviii CHAPTER I: INTRODUCTION... 1 A. Background of the Study... 1 B. Identification of the Problems... 5 C. Limitation of the Study... 5 D. Problem Statement... 6 E. Objectives of the Study... 7 F. Benefits of the Study... 7 CHAPTER II: REVIEW ON RELATED LITERATURE... 9 A. Previous Study... 9 B. Theoretical Review Reading Comprehension a. The Notion of Reading b. The Purpose of Reading c. The Ways of Reading x

11 d. The Reading Strategies e. The Factors Affected Reading comprehension f. The Importance of Reading Comprehension g. The Testing of Reading Comprehension h. The Levels of Reading Comprehension Vocabulary Mastery a. The Notion of Vocabulary b. The Importance of Learning Vocabulary c. Types of Vocabulary d. The Testing of Vocabulary Mastery e. Vocabulary Element in Teaching Reading Interest a. The Notion of Interest b. Reading Interest c. Factors Influencing Interest in Reading d. Review on English Text e. The Aspects of Interest Learning Motivation a. The Notion of Motivation b. The Importance of Motivation in Learning Process c. Characteristics of Student s Motivation d. The Types of Motivation C. Rationale D. Hypothesis CHAPTER III: RESEARCH METHOD A. Design of the Research B. Place and Time of the Research C. Population, Sample, and Sampling D. Operational Definition of Variables Independent Variables Dependent Variables xi

12 E. Technique of Data Collection and Instrument of the Research Technique of Collection Data Instrument of the Research Try Out of the Instrument F. Technique of Data Analysis Data Analysis Hypothesis Testing CHAPTER IV: DATA DESCRIPTION, RESEARCH FINDING, RESULT OF THE REASERACH AND DISCUSSION A. Data Description Students Reading comprehension Students Vocabulary Mastery Students Reading Interest Students Learning Motivation B. Research Finding Classic Assumption Testing Multiple Regressions Hypothesis testing C. Result of the Research D. Discussion CHAPTER V: CONCLUSION, IMPLICATION, AND SUGGESTION A. Conclusion B. Implication Theoretical Implication Practical Implication C. Suggestion BIBLIOGRAPHY APPENDICES xii

13 ABSTRAK Khotimah, Fitriana Nurul. S Kontribusi dari penguasaan kosakata, minat membaca, dan motivasi belajar terhadap pemahaman membaca pada kelas VII di MTs Negeri Surakarta II tahun pelajaran 2017/2018. Thesis. Magister Pengkajian Bahasa. Sekolah Pascasarjana Universitas Muhammadiyah Surakarta. Pembimbing Utama Dr. Maryadi, M. A., dan Pembimbing Kedua Dr. Anam Sutopo, M. Hum Penelitian ini bertujuan untuk mengetahui (1) kontribusi penguasaan kosakata, minat membaca, dan motivasi belajar terhadap pemahaman membaca; (2) kontribusi penguasaan kosakata terhadap pemahaman membaca; (3) kontribusi minat membaca terhadap pemahaman membaca; (4) kontribusi motivasi belajar terhadap pemahaman membaca pada kelas VIII di MTs Negeri Surakarta II tahun pelajaran 2017/2018. Jenis penelitian ini adalah penelitian kuantitatif asosiatif. Sampel dalam penelitian ini berjumlah 171 siswa yang telah diambil dengan menggunakan teknik area sampling acak. Teknik untuk pengumpulan data menggunakan tes dan kuesioner. Peneliti menggunakan SPSS versi 21.0 untuk analisis data yang terdiri dari statistik deskriptif, uji asumsi klasik (normalitas, linieritas, multikolinearitas, heteroskedastisitas), regresi berganda dan pengujian hipotesis yang terdiri dari uji-t (partial), uji-f (simulasi), koefisien determinasi, dan kontribusi prediktor. Hasil penelitian ini menunjukkan bahwa (1) adanya kontribusi penguasaan kosakata, minat membaca, dan motivasi belajar terhadap pemahaman membaca dengan nilai Fhitung lebih tinggi dari Ftabel (38,422 > 2,68) dan nilai signifikan sebesar 0,000 < 0,05; (2) adanya kontribusi penguasaan kosakata terhadap pemahaman membaca dengan nilai thitung lebih tinggi dari ttabel (10,225 > 1,960) dan nilai signifikan sebesar 0,000 < 0,05; (3) adanya kontribusi minat membaca terhadap pemahaman membaca dengan nilai thitung lebih tinggi dari ttabel (2,292 > 1,960) dan nilai signifikan sebesar 0,023 < 0,05; (4) adanya kontribusi motivasi belajar terhadap pemahaman membaca dengan nilai thitung lebih tinggi dari ttabel (2,546 > 1,960) dan nilai signifikan sebesar 0,012 < 0,05. Hasil dari determinasi koefisien (R 2 ) adalah 40,8%. Hasil diatas menunjukkan bahwa adanya kontribusi yang positif dan signifikan antara variabel-variabel bebas terhadap variabel terikat secara terpisah maupun secara bersamaan. Secara statistik, penguasaan kelas kata mempunyai hasil kontribusi tertinggi di variabel penguasaan kosakata siswa, kesadaran memiliki hasil kontribusi tertinggi di variabel minat membaca siswa, ekstrinsik mempunyai hasil kontribusi tertinggi di variabel motivasi belajar siswa, dan mengidentifikasi pokok pikiran mempunyai hasil kontribusi tertinggi di variable pemahaman membaca siswa. Kata Kunci : Penguasaan Kosakata, Minat Membaca, Motivasi Belajar, Pemahaman Membaca xiii

14 ABSTRACT Khotimah, Fitriana Nurul. S The Contribution of Vocabulary Mastery, Reading Interest, and Learning Motivation toward Reading Comprehension of the eighth grade students at MTs Negeri Surakarta II in academic year of 2017/2018. Thesis. Magister of Language Studies. Graduate School of Muhammadiyah University of Surakarta. The Primary Supervisor is Dr. Maryadi, M. A., and the Co-Supervisor is Dr. Anam Sutopo, M. Hum This research is aimed as knowing: (1) the contribution of vocabulary mastery, reading interest, and learning motivation toward reading comprehension; (2) the contribution vocabulary mastery toward reading comprehension; (3) the contribution reading interest toward reading comprehension; and (4) the contribution learning motivation toward reading comprehension of the eighth grade students at MTs Negeri Surakarta II in academic year 2017/2018. The type of this research is quantitative associative research. The sample of this research was 171 students taken by cluster random sampling technique. The technique to collect data used test and questionnaire. The researcher used SPSS version 21.0 to analyze the data which consist of descriptive statistic, classic assumption test (normality, linearity, multicolinearity, and heteroscedasticity), multiple regressions and hypothesis testing such as t-test (partial), f-test (simulation), coefficient of determination, and predictor contributions. The result of this research shows that: (1) there is a positive and significant contribution of vocabulary mastery, reading interest, and learning motivation toward reading comprehension with the value of Fresult is higher than Ftable (38,422 > 2,68) and the significance value is 0,000 < 0,05; (2) there is a positive and significant contribution of vocabulary mastery toward reading comprehension with the value of tresult is higher than ttable (10,225 >1,960) and the significance value is 0,000 < 0,05; (3) there is a positive and significant contribution of reading interest toward reading comprehension with the value of tresult is higher than ttable (2,292 > 1,960) and the significance value is 0,023 < 0,05; and (4) there is a positive and significant contribution of learning motivation toward reading comprehension with the value of tresult is higher than ttable (2,546 > 1,960) and the significance value is 0,012 < 0,05. The result of coefficient determination (R 2 ) is 40,8%. The result above shows that there are positive and significant contributions of independent variables toward dependent variable individually and simultaneously. Statistically, mastering word classes have the highest contribution in students vocabulary mastery, consciousness have the highest contribution in students reading interest, extrinsic motivation have the highest contribution in students learning motivation, and identifying main idea have the highest contribution in students reading comprehension. Keywords: Vocabulary Mastery, Reading Interest, Learning Motivation, Reading Comprehension xiv

15 LIST OF FIGURE Figure 2.1 Rationale of the Study Figure 3.1 Category Score of Vocabulary Mastery and Reading Comprehension 55 Figure 4.1 Mean Category of Students Students Reading Comprehension Figure 4.2 Mean Category of Students Vocabulary Mastery Figure 4.3 Mean Category of Students Students Reading Interest Figure 4.4 Mean Category of Students Students Learning Motivation Figure 4.5 Histogram Graph of Normality Testing Figure 4.6 P-P Plot Graph of Normality Testing xv

16 LIST OF TABLE Table 2.1 Descriptive and Recount on Genre Text Table 2.2 Distinction between Intrinsic and Extrinsic Learning Motivation Table 3.1 The Schedule of the Research Table 3.2 Operational Definition of the Variables on this Research Table 3.3 Category Score of Linker Scale Table 3.4 Summary Result of the Validity Testing of Students Vocabulary Mastery Table 3.5 Summary Result of the Validity Testing of Students Reading Interest Table 3.6 Summary Result of the Validity Testing of Students Learning Motivation Table 3.7 Summary Result of the Validity Testing of Students Reading Comprehension Table 3.8 Summary Result of Reliability Testing of Instruments Table 4.1 Summary Result of Mean and Std. Deviation of Students Reading Comprehension Table 4.2 Summary Result of Percentage of Students Reading Comprehension Table 4.3 Summary Result of Mean and Std. Deviation of Students Vocabulary Mastery Table 4.4 Summary Result of Percentage of Student s Vocabulary Mastery Table 4.5 Summary Result of Mean and Std. Deviation of Students Reading Interest Table 4.6 Summary Result of Percentage of Students Reading Interest xvi

17 Table 4.7 Summary Result of Mean and Std. Deviation of Students Learning Motivation Table 4.8 Summary Result of Percentage of Student s Learning Motivation Table 4.9 Normality Testing Result by Using Kolmogorov-Smirnov Table 4.10 Linearity Testing Result of Students Vocabulary Mastery toward Students Reading Comprehension Table 4.11 Linearity Testing Result of Students Reading Interest toward Students Reading Comprehension Table 4.12 Linearity Testing Result of Students Learning Motivation toward Students Reading Comprehension Tabale 4.13The Result of Multicolinearity Testing Table 4.14 The Result of Heteroscedasticity Testing Table 4.15 The Result of Multiple Regressions Table 4.16 The Result of F-Test (Simulation) Table 4.17 The Result of Coefficient of Determination (R 2 ) Table 4.18 Summary of Effective Contribution (EC) and Relative Contribution (RC) xvii

18 LIST OF APPENDIX Appendix 1 Blueprint of Try-Out Instrument Appendix 2 Try Out Instruments Appendix 3 Data Tabulation of Try-Out Appendix 4 Result of Validity Testing Appendix 5 Result of Reliability Testing Appendix 6 Blueprint of Research Instrument Appendix 7 Instruments of Research Appendix 8 Data Tabulation of Research Appendix 9 Result of Descriptive Statistics Testing Appendix 10 Result of Classic Assumption Testing Appendix 11 Result of Multiple Regression Testing Appendix 12 Calculation Result of Effective Contribution (EC) and Relative Contribution (RC) Appendix 13 Data Tabulation of Hypothesis Testing Appendix 14 The rtable of Product Moment (Sig. 0,05 two-tail) Appendix 15 The ttable of Significance 0, Appendix 16 The ftable of Significance 0, Appendix 17 The Research Permission and Declaration Letter Appendix 18 The Picture of Try out and Research Activity xviii