|
| |
Steps in
Creating Short Forms of IQ Tests
(Quick, Dirty, and
Not Recommended)
Five subtest short form:
|
…intercorrelations
|
Multiplier
|
Additive
|
|
1.60-1.67
|
1.7
|
13
|
|
1.68-1.77
|
1.7
|
14
|
|
1.78-1.87
|
1.7
|
15
|
|
1.88-1.98
|
1.7
|
16
|
|
1.99-2.09
|
1.7
|
17
|
|
2.10-2.20
|
1.6
|
18
|
|
2.21-2.32
|
1.6
|
19
|
|
2.33-2.44
|
1.6
|
20
|
|
2.45-2.57
|
1.6
|
21
|
|
2.58-2.70
|
1.6
|
22
|
|
2.71-2.83
|
1.5
|
23
|
|
2.84-2.98
|
1.5
|
24
|
|
2.99-3.13
|
1.5
|
25
|
|
3.14-3.28
|
1.5
|
26
|
|
3.29-3.44
|
1.5
|
27
|
|
3.45-3.61
|
1.4
|
28
|
|
3.62-3.78
|
1.4
|
29
|
|
3.79-3.96
|
1.4
|
30
|
|
3.97-4.15
|
1.4
|
31
|
|
4.16-4.35
|
1.4
|
32
|
|
4.36-4.56
|
1.3
|
33
|
|
4.57-4.78
|
1.3
|
34
|
|
4.79-5.01
|
1.3
|
35
|
|
5.02-5.25
|
1.3
|
36
|
|
5.26-5.50
|
1.3
|
37
|
|
5.51-5.76
|
1.2
|
38
|
|
5.77-6.03
|
1.2
|
39
|
|
6.04-6.32
|
1.2
|
40
|
|
6.33-6.63
|
1.2
|
41
|
|
6.64-6.95
|
1.2
|
42
|
|
6.69-7.28
|
1.1
|
43
|
|
7.29-7.64
|
1.1
|
44
|
|
7.65-8.02
|
1.1
|
45
|
|
8.03-8.41
|
1.1
|
46
|
|
8.42-8.83
|
1.1
|
47
|
|
