Contents type: Verbal, numerical, working memory capacity, extrasensory perception. Period: 1997-1999
For reasons of privacy, the actual scores are not revealed for this small sample.
Test | n | r |
---|---|---|
Intelligence Quantifier by assessment | 3 | 0.98 |
Weighted average of correlations: 0.978
Conservatively estimated minimum g loading: 0.99
Ranking in above table is based on the unrounded correlations. All available data is present in this table, no tests are left out except for those with less than 2 score pairs. All known pairs are used to obtain the true, honest statistics; correlations have not been artificially inflated by leaving out ceiling scores, outliers or other anomalies.
Test | n | r |
---|---|---|
Raven's Advanced Progressive Matrices (I.Q.) | 2 | 1.00 |
Weighted average of correlations: 1.000
Ranking in above table is based on the unrounded correlations. All available data is present in this table, no tests are left out except for those with less than 2 score pairs. All known pairs are used to obtain the true, honest statistics; correlations have not been artificially inflated by leaving out ceiling scores, outliers or other anomalies.
Please be aware that correlations with these external tests are in most cases affected (depressed, typically) by one or more of the following: 1) Little overlap with the object test because of the much lower ceilings and inherent ceiling effects of the tests used in regular psychology; 2) Candidates reporting scores selectively, for instance only the higher ones while withholding lower ones; 3) Candidates reporting, or having been reported by psychometricians, incorrect scores.
Country | n | Mean score |
---|---|---|
Netherlands | 3 | 76.33 |
For reasons of privacy, only countries with 2 or more candidates are included in this table. Ranking is based on the unrounded means, and then alphabetic.
Personalia | n | r |
---|---|---|
Year of birth | 5 | 0.56 |
Sex | 5 | 0.02 |
Correlation of this test with national average I.Q.s published by Lynn and Vanhanen:
Quality = 0.82