X = Total Score of X parents’ involvement
Y = Total Score of Y students’ English achievement
D. Research Finding
1. Data Description
Having field research about parents’ involvement and the students’ English achievement in Madrasah Tsanawiyah Negeri Tangerang II Pamulang, the writer took the scores of 40 students
sampling and analyzed those score in order to find out whether there is any correlation between English achievement and parents’ involvement by Pearson’s product moment.
The data of students’ score of questionnaire and report book can be seen on the following tables:
Table 8 Questionnaire Result about Parents’ Involvement
Respondent Score
1 30
2 32
3 35
4 43
5 43
6 41
7 36
8 31
9 51
10 54
11 38
12 27
13 56
14 47
15 49
16 27
17 40
18 41
19 45
20 31
21 41
22 43
23 55
24 49
25 43
26 50
27 53
28 36
29 47
30 41
31 55
32 46
33 29
34 36
35 42
36 57
37 36
38 24
39 39
40 40
The table above shows that the total score from 40 respondents is 1659. After calculating statistically, the writer got minimum score is 24, the maximum is 57, the
median is 41, the mode is 43 and the mean is 42.
Table 9 Student’s English Achievement
Respondent Score
1 60
2 71
3 69
4 66
5 69
6 65
7 69
8 71
9 71
10 83
11 70
12 78
13 71
14 70
15 69
16 71
17 66
18 71
19 66
20 66
21 68
22 69
23 91
24 79
25 74
26 80
27 80
28 69
29 75
30 76
31 79
32 91
33 67
34 71
35 80
36 80
37 77
38 80
39 78
40 79
From the student’s report books about their English achievement as shown on the table above, it can be found that the total score from 40 respondents is 2935. In statistical
calculation, it showed the minimum score is 60, the maximum is 91, the median is 71, the mode is 71, and the mean is 73.
2. Data Analysis
In order to know the correlation between parents’ involvement and students’ English achievement, Pearson’s product moment formula is applied. The data are described on the
following table:
Table 10 The Correlation between Parents’ Involvement and Students’ English Achievement
No X
Y XY
X
2
Y
2
1 30
60 1800
900 3600
2 32
71 2272
1024 5041
3 35
69 2415
1225 4761
4 43
66 2838
1849 4356
5 43
69 2967
1849 4761
6 41
65 2665
1681 4225
7 36
69 2484
1296 4761
8 31
71 2201
961 5041
9 51
71 3621
2601 5041
10 54
83 4482
2916 6889
11 38
70 2660
1444 4900
12 27
78 2106
729 6084
13 56
71 3976
3136 5041
14 47
70 3290
2209 4900
15 49
69 3381
2401 4761
16 27
71 1917
729 5041
17 40
66 2640
1600 4356
18 41
71 2911
1681 5041
19 45
66 2970
2025 4356
20 31
66 2046
961 4356
21 41
68 2788
1681 4624
22 43
69 2967
1849 4761
23 55
91 5005
3025 8281
24 49
79 3871
2401 6241
25 43
74 3182
1849 5476
26 50
80 4000
2500 6400
27 53
80 4240
2809 6400
28 36
69 2484
1296 4761
29 47
75 3525
2209 5625
30 41
76 3116
1681 5776
31 55
79 4345
3025 6241
32 46
91 4186
2116 8281
33 29
67 1943
841 4489
34 36
71 2556
1296 5041
35 42
80 3360
1764 6400
36 57
80 4560
3249 6400
37 36
77 2772
1296 5929
38 24
80 1920
576 6400
39 39
78 3042
1521 6084
40 40
79 3160
1600 6241
N= 40 1659
2935 122664
71801 217163
From the calculation of statistic, it can be showed that: X
= 1659 Y
= 2935 XY = 122664
X2 = 71801 Y2 = 217163
r
xy
= ]
][ [
2 2
2 2
Y Y
N X
X N
Y X
XY N
− −
−
r
xy
= ]
2935 217163
40 ][
1659 71801
40 [
2935 1659
122664 40
2 2
− −
− x
x x
r
xy
= ]
8614225 8686520
][ 2752281
2872040 [
4869165 4906560
− −
−
r
xy
= ]
72295 ][
119759 [
37395
r
xy
=
8657976905 37395
r
xy
=
25041 ,
93048 37395
r
xy
= 0,401888265 r
xy
= 0,402
From this calculation the result is 0.402
3. Test of Hypothesis and Interpretation of Data Analysis