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