|
| |
Steps in
Creating Short Forms of IQ Tests
(Quick, Dirty, and
Not Recommended)
Three subtest short form:
|
…intercorrelations
|
Multiplier
|
Additive
|
|
.59-.64
|
2.4
|
27
|
|
.65-.70
|
2.4
|
28
|
|
.71-.76
|
2.4
|
29
|
|
.77-.82
|
2.3
|
30
|
|
.83-.89
|
2.3
|
31
|
|
.90-.96
|
2.3
|
32
|
|
.97-1.04
|
2.2
|
33
|
|
1.05-1.12
|
2.2
|
34
|
|
1.13-1.20
|
2.2
|
35
|
|
1.21-1.29
|
2.1
|
36
|
|
1.30-1.37
|
2.1
|
37
|
|
1.38-1.47
|
2.1
|
38
|
|
1.48-1.57
|
2.0
|
39
|
|
1.58-1.67
|
2.0
|
40
|
|
1.68-1.78
|
2.0
|
41
|
|
1.79-1.90
|
1.9
|
42
|
|
1.91-2.02
|
1.9
|
43
|
|
2.03-2.15
|
1.9
|
44
|
|
2.16-2.28
|
1.8
|
45
|
|
2.29-2.43
|
1.8
|
46
|
|
2.44-2.58
|
1.8
|
47
|
|
2.59-2.74
|
1.7
|
48
|
|
