Contoh analisis varians dengan menggunakan SPSS:
Seorang peneliti ingin melihat perbandingan kreatifitas dari empat kelompok, dimana perbandingannya diteliti selama 12 hari.
|
Hari
|
Kel 1
|
Kel 2
|
Kel 3
|
Kel 4
|
|
1
|
38
|
45
|
45
|
28
|
|
2
|
36
|
48
|
48
|
25
|
|
3
|
39
|
42
|
42
|
24
|
|
4
|
34
|
46
|
46
|
26
|
|
5
|
35
|
41
|
41
|
29
|
|
6
|
32
|
45
|
45
|
14
|
|
7
|
39
|
48
|
48
|
32
|
|
8
|
34
|
47
|
47
|
18
|
|
9
|
32
|
42
|
42
|
29
|
|
10
|
36
|
41
|
41
|
33
|
|
11
|
33
|
39
|
39
|
24
|
|
12
|
39
|
33
|
33
|
22
|
Rumusan Masalah : Apakah perbandingan rata-rata kreatifitas
antar empat kelompok identik selama 12 hari?
Ho : Rata-rata
sampel identik
Ha : Rata-rata
sampel tidak identik
Nilai α yang digunakan adalah 0,05 (tingkat
kepercayaan 95%), dimana menggunakan ANOVA Test karena mencari hubungan
komparatif yang terdiri atas empat kelompok sampel.
Data di input ke dalam masing-masing variabel dalam
program SPSS, kemudian untuk uji ANOVA-nya, dilakukan dengan langkah: Analyze à Compare Mean à One Way ANOVA.
Outputnya adalah:
|
Descriptives
|
||||||||
|
Kreatifitas
|
||||||||
|
|
N
|
Mean
|
Std.
Deviation
|
Std.
Error
|
95%
Confidence Interval for Mean
|
Minimum
|
Maximum
|
|
|
Lower
Bound
|
Upper
Bound
|
|||||||
|
satu
|
12
|
35.58
|
2.678
|
.773
|
33.88
|
37.29
|
32
|
39
|
|
dua
|
12
|
43.08
|
4.358
|
1.258
|
40.31
|
45.85
|
33
|
48
|
|
tiga
|
12
|
43.08
|
4.358
|
1.258
|
40.31
|
45.85
|
33
|
48
|
|
empat
|
12
|
25.33
|
5.516
|
1.592
|
21.83
|
28.84
|
14
|
33
|
|
Total
|
48
|
36.77
|
8.473
|
1.223
|
34.31
|
39.23
|
14
|
48
|
|
Test of
Homogeneity of Variances
|
||||||||||
|
Kreatifitas
|
||||||||||
|
Levene
Statistic
|
df1
|
df2
|
Sig.
|
|||||||
|
1.173
|
3
|
44
|
.331
|
|||||||
|
ANOVA
|
||||||||||
|
Kreatifitas
|
||||||||||
|
|
Sum of
Squares
|
df
|
Mean
Square
|
F
|
Sig.
|
|||||
|
Between Groups
|
2543.063
|
3
|
847.688
|
44.861
|
.000
|
|||||
|
Within Groups
|
831.417
|
44
|
18.896
|
|
|
|||||
|
Total
|
3374.479
|
47
|
|
|
|
|||||
|
Multiple
Comparisons
|
|||||||
|
Dependent Variable:Kreatifitas
|
|||||||
|
|
(I) kelompok kerja
|
(J) kelompok kerja
|
Mean
Difference (I-J)
|
Std.
Error
|
Sig.
|
95%
Confidence Interval
|
|
|
|
Lower
Bound
|
Upper
Bound
|
|||||
|
Tukey HSD
|
satu
|
dua
|
-7.500*
|
1.775
|
.001
|
-12.24
|
-2.76
|
|
tiga
|
-7.500*
|
1.775
|
.001
|
-12.24
|
-2.76
|
||
|
empat
|
10.250*
|
1.775
|
.000
|
5.51
|
14.99
|
||
|
dua
|
satu
|
7.500*
|
1.775
|
.001
|
2.76
|
12.24
|
|
|
tiga
|
.000
|
1.775
|
1.000
|
-4.74
|
4.74
|
||
|
empat
|
17.750*
|
1.775
|
.000
|
13.01
|
22.49
|
||
|
tiga
|
satu
|
7.500*
|
1.775
|
.001
|
2.76
|
12.24
|
|
|
dua
|
.000
|
1.775
|
1.000
|
-4.74
|
4.74
|
||
|
empat
|
17.750*
|
1.775
|
.000
|
13.01
|
22.49
|
||
|
empat
|
satu
|
-10.250*
|
1.775
|
.000
|
-14.99
|
-5.51
|
|
|
dua
|
-17.750*
|
1.775
|
.000
|
-22.49
|
-13.01
|
||
|
tiga
|
-17.750*
|
1.775
|
.000
|
-22.49
|
-13.01
|
||
|
Bonferroni
|
satu
|
dua
|
-7.500*
|
1.775
|
.001
|
-12.40
|
-2.60
|
|
tiga
|
-7.500*
|
1.775
|
.001
|
-12.40
|
-2.60
|
||
|
empat
|
10.250*
|
1.775
|
.000
|
5.35
|
15.15
|
||
|
dua
|
satu
|
7.500*
|
1.775
|
.001
|
2.60
|
12.40
|
|
|
tiga
|
.000
|
1.775
|
1.000
|
-4.90
|
4.90
|
||
|
empat
|
17.750*
|
1.775
|
.000
|
12.85
|
22.65
|
||
|
tiga
|
satu
|
7.500*
|
1.775
|
.001
|
2.60
|
12.40
|
|
|
dua
|
.000
|
1.775
|
1.000
|
-4.90
|
4.90
|
||
|
empat
|
17.750*
|
1.775
|
.000
|
12.85
|
22.65
|
||
|
empat
|
satu
|
-10.250*
|
1.775
|
.000
|
-15.15
|
-5.35
|
|
|
dua
|
-17.750*
|
1.775
|
.000
|
-22.65
|
-12.85
|
||
|
tiga
|
-17.750*
|
1.775
|
.000
|
-22.65
|
-12.85
|
||
|
*. The mean difference is significant at the 0.05 level.
|
|||||||
|
Kreatifitas
|
|||||
|
|
kelompok kerja
|
N
|
Subset
for alpha = 0.05
|
||
|
|
1
|
2
|
3
|
||
|
Tukey HSDa
|
empat
|
12
|
25.33
|
|
|
|
satu
|
12
|
|
35.58
|
|
|
|
dua
|
12
|
|
|
43.08
|
|
|
tiga
|
12
|
|
|
43.08
|
|
|
Sig.
|
|
1.000
|
1.000
|
1.000
|
|
|
Means for groups in homogeneous subsets are displayed.
|
|||||
|
a. Uses Harmonic Mean Sample Size = 12.000.
|
|||||
∴ KESIMPULAN
nilai
sig. nya 0,00, artinya sangat signifikan menerima Ho ANOVA, yang bunyinya
ratarata sampel identik.
Demikianlah
contoh olah data statistik ANOVA dengan menggunakan SPSS.
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