83
3. Postes Kelompok Eksperimen
a. M
i
= skor maksimal + skor minimal
= 88 + 71
= 159
= 79,5 b.
Sd
i
= skor maksimal
– skor minimal =
88 – 71
= 17
= 2,8 c.
Kategori rendah = M
i
– Sd
i
= 79,5 – 2,8
= 76,7 d.
Kategori sedang = M
i
- Sd
i
s.d M
i
+ Sd
i
= 79,5 – 2,8 s.d 79,5 + 2,8
= 76,7 s.d 82,3 e.
Kategori tinggi = M
i
+ Sd
i
= 79,5 + 2,8 = 82,3
84
4. Postes Kelompok Kontrol
a. M
i
= skor maksimal + skor minimal
= 82 + 60
= 142
= 71 b.
Sd
i
= skor maksimal
– skor minimal =
82 – 60
= 22
= 3,6 c.
Kategori rendah = M
i
– Sd
i
= 71 – 3,6
= 67,4 d.
Kategori sedang = M
i
- Sd
i
s.d M
i
+ Sd
i
= 71 – 3,6 s.d 71 + 3,6
= 67,4 s.d 74,3 e.
Kategori tinggi = M
i
+ Sd
i
= 71 + 3,6 = 74,3
85
Lampiran IV: Distribusi Data Statistik A.
Distribusi Frekuensi Nilai Pretes Kelompok Eksperimen dan Kontrol
1. Distribusi Frekuensi Nilai Pretes Kelompok Eksperimen
Statistics
Pretesteks N
Valid 31
Missing Mean
70.06 Std. Error of Mean
1.088 Median
70.00 Mode
71 Std. Deviation
6.060 Variance
36.729 Range
23 Minimum
58 Maximum
81 Sum
2172
pretesteks
Frequency Percent
Valid Percent Cumulative
Percent Valid
58 1
3.2 3.2
3.2 59
2 6.5
6.5 9.7
62 1
3.2 3.2
12.9 64
2 6.5
6.5 19.4
65 1
3.2 3.2
22.6 67
1 3.2
3.2 25.8
68 1
3.2 3.2
29.0 69
4 12.9
12.9 41.9
70 3
9.7 9.7
51.6 71
5 16.1
16.1 67.7
72 2
6.5 6.5
74.2 73
1 3.2
3.2 77.4
74 1
3.2 3.2
80.6 77
1 3.2
3.2 83.9
78 2
6.5 6.5
90.3 79
1 3.2
3.2 93.5
81 2
6.5 6.5
100.0 Total
31 100.0
100.0
86
2. Distribusi Frekuensi Pretes Awal Kelompok Kontrol
Statistics
Pretestkon N
Valid 31
Missing Mean
70.45 Std. Error of Mean
.998 Median
71.00 Mode
69
a
Std. Deviation 5.555
Variance 30.856
Range 23
Minimum 57
Maximum 80
Sum 2184
a. Multiple modes exist. The smallest value is shown
pretestkon
Frequency Percent
Valid Percent Cumulative
Percent Valid
57 1
3.2 3.2
3.2 60
1 3.2
3.2 6.5
63 1
3.2 3.2
9.7 64
2 6.5
6.5 16.1
65 1
3.2 3.2
19.4 66
1 3.2
3.2 22.6
67 1
3.2 3.2
25.8 68
2 6.5
6.5 32.3
69 3
9.7 9.7
41.9 70
2 6.5
6.5 48.4
71 3
9.7 9.7
58.1 72
2 6.5
6.5 64.5
73 1
3.2 3.2
67.7 74
2 6.5
6.5 74.2
75 2
6.5 6.5
80.6 76
1 3.2
3.2 83.9
77 2
6.5 6.5
90.3 78
1 3.2
3.2 93.5
79 1
3.2 3.2
96.8 80
1 3.2
3.2 100.0
Total 31
100.0 100.0
Kategori