Statistics of Father's educational level

Legenda

The educational levels reported by test candidates are encoded as follows:

• 0 = No formal education
• 1 = A few years primary school
• 2 = Primary school completed
• 3 = A few years secondary school
• 4 = Secondary school completed
• 5 = Bachelor
• 6 = Master
• 7 = Doctor

Scores on Father's educational level as of 26 March 2025

Contents type: Personal information, observation, or non-cognitive personality test score in numeric form.   

• n: 1087
• Mean: 4.6
• Standard deviation: 1.45
• Maximum possible: 7
• Male mean: 4.6 (n = 949)
• Female mean: 4.5 (n = 136)
• Intersex mean: 4.5 (n = 2)
• Proportion of males among candidates: 0.873
• Hardness: 0.34
• Resolution: 1.0

Scores by males

n = 949

Scores by females

n = 136

Correlation of Father's educational level with other mental ability tests

Weighted mean of correlations: 0.027 (N = 5736)

Estimated g factor loading: 0.16

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.

Notice: The g loading of father's educational level is extremely small on the whole.

Correlation of Father's educational level with other tests - for females

Weighted mean of correlations: 0.227 (N = 150)

Estimated g factor loading among females: 0.48

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.

Notice: Within females, the g loading of father's educational level is markedly greater than overall, and this may just be significant.

Estimated loadings of Father's educational level on particular item types

These are estimated g factor loadings, but against homogeneous tests (containing only particular item types) as opposed to non-compound heterogeneous tests. Although tending to surprise the lay person, it is not uncommon for tests to have high loadings on item types they do not actually contain themselves. Such loadings reflect the empirical fact that most tests for mental abilities measure primarily g, regardless of their contents; that the major part of test score variance is caused by g, and only a minor part by factors germane to particular item types. It is of key importance to understand that this is a fact of nature, a natural phenomenon, and not something that was built into the tests by the test constructors.

N = 4079

Compound tests have been left out of this table to avoid overlap.

Balanced g loading = 0.14

National means for Father's educational level

Total number of countries: 71

For reasons of privacy, only countries with 3 or more candidates are included in this table. Ranking is based on the unrounded means, and then alphabetic.

Correlation of Father's educational level with personal details

Observation: There is an exceedingly significant moderate positive correlation of Father's educational level with Mother's educational level, reflecting assortative mating, one presumes. Virtually the same correlation is seen below for both the female and the male candidates separately, which makes sense given that the assortative mating took place before the candidate (child) was conceived, and can therefore not have been affected by the sex of the candidate. The fact that this correlation is so alike within-sex confirms that it is genuine, and also confirms that the statistic was reported correctly on the whole.

Correlation with personal details of Father's educational level - within females

Correlation with personal details of Father's educational level - within males

Estimated g factor loadings for restricted ranges

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 these values to be lower than the test's full-range g loading.

The g of father's educational level varies across the spectrum of educational levels, and is actually highest downward of 2 (primary school completed), although this is not shown in the above table.

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