|
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Steps in
Creating Short Forms of IQ Tests
(Quick, Dirty, and
Not Recommended)
Two subtest short form:
|
Sum of
intercorrelations
|
Multiplier
|
Additive
|
|
.19-.20
|
3.2
|
35
|
|
.21-.25
|
3.2
|
36
|
|
.26-.27
|
3.1
|
37
|
|
.28-.32
|
3.1
|
38
|
|
.33-.34
|
3.1
|
39
|
|
.35-.36
|
3.0
|
39
|
|
.37-.41
|
3.0
|
40
|
|
.42-.43
|
3.0
|
41
|
|
.44-.46
|
2.9
|
41
|
|
.47-.51
|
2.9
|
42
|
|
.52-.53
|
2.9
|
43
|
|
.54-.56
|
2.8
|
43
|
|
.57-.62
|
2.8
|
44
|
|
.63-.65
|
2.8
|
45
|
|
.66-.68
|
2.7
|
45
|
|
.69-.74
|
2.7
|
46
|
|
.75-.77
|
2.7
|
47
|
|
.78-.81
|
2.6
|
47
|
|
.82-.88
|
2.6
|
48
|
|
.89-.92
|
2.6
|
49
|
|
.93-.96
|
2.5
|
49
|
|
.97-99
|
2.5
|
50
|
|
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