Numerologica
Preliminary norms
The norms on this page were developed by Paul Cooijmans, psychometitor at I.Q. Tests for the High Range.
Disclaimer: This table is intended for reporting purposes only. Standard scores do not represent I.Q. scores or any psychological construct.
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Norming information
- Quality of norms: √N × r2 = 5.97
- Weighted mean correlation with tests used for norming: 0.798 (N = 88)
- Correlation after conversion to protonorms of tests used for norming: 0.73 (n = 88)
- Threshold correlation to select tests used for norming: 0.61
- Minimum number of scores per test used for norming: 3
- Norming method: Rank equation
- Sample-independent hardness: 0.42
Explanations for this section are available here (external website).
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