2.3. The Character Education
16 2.3.1.
The Cooperation Character 17
2.3.2. The Curiosity Character
19 2.4.
Buffer Solution 20
2.4.1. Definition of Buffer Solution
20 2.4.2.
How does Buffer Solution Maintain PH Value? 20
2.4.3. How does Buffer Solution Work in Human Body?
21 2.4.4.
How to Calculate the PH Value of Buffer? 22
2.4.5. How to Determine the PH of Buffer Solution?
23 2.5.
Conceptual Framework 24
2.6. Hypothesis
24
CHAPTER III RESEARCH METHODOLOGY 25
3.1. Location and Time of Research 25
3.2. Population and Sample 25
3.3. Research Variable and Instrument 26
3.3.1. The Research Variable
26
3.3.2. Research Instruments
26
3.3.3. The Instrument’s Trial
32
3.4. Type and Design of Research 34
3.4.1. Types of Research
34
3.4.2. Research Procedure
35
3.4.3. Research Design
37
3.5.Technique Data Collection 38
3.6. Data Analysis 38
3.6.1. The Normality Test
38
3.6.2. The Homogeneity of Test
38
3.6.3. Normalized Gain
39
3.7. The Calculation of Student’s Character
39
3.8. Hypothesis Testing 39
CHAPTER IV RESULT AND DISCUSSION 40
4.1. The Description of School Sample 40
4.2. The Instrument’s Analysis
40 4.2.1.
The Observation Sheet of Student’s Character 40
4.2.2. The Questionnaire of Student’s Character
41 4.2.3.
The Validity of Evaluation Test 41
4.2.4. Reliability of Evaluation Test
43 4.2.5.
Difficulty Index of Evaluation Test 43
4.2.6. Discriminating Power of Evaluation Test
44 4.3.
The Data of Research’s Result 46
4.3.1. The Result of Pretest and Posttest
46 4.3.2.
The Result of Development of Student’s Cooperation and Curiosity Character by Observation Sheet
47 4.3.3.
The Result of Development of Student’s Cooperation and Curiosity Character by Questionnaire
47 4.4.
The Analysis Test of Data 48
4.4.1. Normality Test
48 4.4.2.
Homogeneity Test 49
4.5. Student’s Achievement
50 4.5.1.
Student’s Achievement before Teaching Treatment 50
4.5.2. Student’s Achievement after Teaching Treatment
51 4.5.3.
The Analysis of Questions Based on Posttest Result 55
4.5.4. Gain Increasing of Student’s Achievement
56 4.6.
Student’s Character 56
4.6.1. The Development of Student’s Cooperation Character
56 4.6.2.
The Development of Student’s Curiosity Character 57
4.7. Hypothesis Testing for Cognitive Aspect
58
