Epiq Tests (aggregate) statistics

Introduction

These are statistics based on the scores on Epiq's tests (aggregate) as reported by test candidates of I.Q. Tests for the High Range.

Scores on Epiq Tests (aggregate) as of 25 June 2022

• n: 28
• Median: 145.0
• Quartile deviation: 3.0
• Range: 26
• Male median: 145.0 (n = 26)
• Female median: 150.0 (n = 2)
• Resolution: 0.35

Correlation of Epiq Tests (aggregate) with other mental ability tests

Weighted average of correlations: 0.549 (N = 231, weighted sum = 126.72)

Conservatively estimated minimum g loading: 0.74

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 4 score pairs. All known pairs are used, including possible floor/ceiling scores or outliers.

Estimated loadings of Epiq Tests (aggregate) on particular item types

Too little data.

National medians for Epiq Tests (aggregate)

For reasons of privacy, only countries with 2 or more candidates are included in this table. Ranking is based on the medians, and then alphabetic.

Correlation with national I.Q.'s of Epiq Tests (aggregate)

Correlation of this test with national average I.Q.'s published by Lynn and Vanhanen:

• r = 0.04 (n = 27)

Correlation of Epiq Tests (aggregate) with personal details

Estimated g factor loadings upward and downward of particular scores

In parentheses the number of score pairs on which that estimated g factor loading is based. The goal of this is to verify the hypothesis that g becomes less important, accounts for a smaller proportion of the variance, at higher I.Q. levels. The mere fact of restricting the range like this also depresses the g loading compared to computing it over the test's full range, so it would be normal for both values to be lower than the test's full-range g loading.

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