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. 2013 Apr 23;13:122. doi: 10.1186/1471-244X-13-122

Table 2.

Parallel analysis and percentage of variance explained by each factor of the BDI-II

    Total     Boys     Girls  
Factor
Real data
Mean random
P95random
Real data
Mean random
P95random
Real data
Mean random
P95random
1*
39.2
13.0
14.7
37.9
16.7
18.3
38.2
10.7
12.0
2
6.1
8.6
9.8
7.3
8.4
9.2
6.7
8.9
9.9
3
5.4
7.9
8.8
6.0
7.7
8.3
6.0
8.3
9.0
4
5.2
7.5
8.2
5.4
7.2
7.7
5.2
7.8
8.4
5
4.6
7.0
7.8
5.3
6.8
7.2
5.0
7.3
7.9
6
4.2
6.6
7.2
4.9
6.3
6.7
4.7
6.8
7.3
7
4.0
6.2
6.8
4.5
5.9
6.3
4.5
6.4
6.8
8
4.0
5.8
6.4
4.2
5.5
5.9
4.2
6.0
6.4
9
3.6
5.4
5.9
4.0
5.1
5.5
3.8
5.5
6.0
10
3.4
5.0
5.4
3.5
4.8
5.1
3.6
5.1
5.5
11
3.2
4.6
5.0
3.3
4.4
4.7
3.2
4.7
5.1
12
3.0
4.2
4.7
2.9
4.0
4.3
3.0
4.3
4.7
13
2.6
3.8
4.3
2.7
3.6
4.0
2.4
3.8
4.3
14
2.5
3.4
4.0
2.1
3.2
3.6
2.2
3.4
3.9
15
2.2
2.9
3.7
1.8
2.8
3.3
2.1
3.0
3.5
16
1.7
2.5
3.2
1.5
2.4
2.9
1.7
2.5
3.1
17
1.7
2.1
2.9
1.0
2.0
2.5
1.4
2.0
2.6
18
1.5
1.6
2.4
1.0
1.6
2.1
0.9
1.6
2.2
19
1.0
1.2
1.9
0.6
1.1
1.6
0.7
1.1
1.6
20
0.7
0.7
1.5
0.3
0.6
1.1
0.5
0.7
1.1
21 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0

* Advised number of factors; Real data = percentage of the variance explained in relation to the real data based on minimum rank factor analysis; Mean random = mean percentage of the variance explained by the random samples; P95 random = percentage of the variance explained over the 95 percentile of the random samples.