CHAPTER IV DATA ANALYSIS AND RESEARCH FINDINGS

CHAPTER IV

DATA ANALYSIS AND RESEARCH FINDINGS

A. Data analysis

After doing the research, the writer used t-test formula to analyze the result of pre-test and post-test . The writer used t-test taken from Arikunto (1997:300) to analyze the data. The formula is:

t = Md

X²d

N (N-1)

Where,

Md = Mean of the pre-test and post-test

Xd = Deviation of each subject (d-Md)

X²d = The total deviation value

N = Total number of students

d.b = N-1

t = 0.05

Moreover, there are some stages in analyzing the data. They are:

1. Checking the students’ worksheet.
2. Giving score in Interval scale with the point of rating scale 1-10.
3. Describing the scores in the table.
4. Counting the mean using formula X = X

N

5. Finding the median, mode, and range
6. Counting the standard deviation value using the formula: SD = (X-X)²

N (N-1)

7. Counting the deviation value
8. Counting the t-test using the formula:

t = Md

X²d

N (N-1)

After calculated the test, the writer continued computing the data and analyzing the result of their test. Here are the following tables:

1. The result of pre-test in table 4.1
2. The result of post-test in table 4.2
3. Standard Deviation of pre-test in table 4.3
4. Standard Deviation of post-test in table 4.4
5. The total Deviation Value in table 4.5

Here are the calculations of the results using the tables: