Monthly Archives: April 2013

Self-reported white ancestry among US blacks : A Jensen effect

In an earlier article, I have shown that the magnitude of sibling correlations among NLSY-ASVAB subtests correlates with the magnitude of g-loadings, but moderately with the magnitude of black-white IQ gaps in those subtests using Jensen’s method of correlated vectors, … Continue reading

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Race, Evolution, and Behavior, by Jean Philippe Rushton (1997)

Race, Evolution, and Behavior by Jean Philippe Rushton (1997)

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Self-reported white ancestry among US blacks : A Jensen effect (NLSY97 syntax)

See the related post here.

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The g Factor: The Science of Mental Ability

The g Factor: The Science of Mental Ability Arthur R. Jensen, 1998.

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IQ Regression to the Mean : the Genetic Prediction Vindicated

The IQ differences between blacks and whites lead to differences in sibling regression to the mean. The races regress to different means. Criticisms were made ​​about the hereditarian interpretation of the differential sibling regressions. I will demonstrate that this phenomenon … Continue reading

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Uses of Sibling Data in Educational and Psychological Research

Uses of Sibling Data in Educational and Psychological Research ARTHUR R. JENSEN 1980 University of California, Berkeley Methods are explained, with empirical examples, for using sibling data on psychometric variables (1) as a covariate for statistically controlling family background in … Continue reading

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IQ Regression to the Mean and Genetic Prediction : NLSY 79/97 SPSS Syntax for IQ subgroups

For running the below syntax, my SPSS file is needed (available at request) because of the way I named my variables. Or the other way is to run the syntax given here and there, and to rename the variables as I did.

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IQ Regression to the Mean and Genetic Prediction : NLSY 79 SPSS Syntax

I haven’t reported the non full-sibling correlations among blacks and hispanics because the samples amounted to only 5 or 6. The non full-sibling (subtests) correlations include only the white sample).

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IQ Regression to the Mean and Genetic Prediction : NLSY 97 SPSS Syntax

I must warn. It is probable that the CASESTOVARS command will not work because the number of variable exceeds 80 or 90. In this case, you should better stop the syntax before CASESTOVARS. Then, delete the variables you don’t need … Continue reading

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Skin Color, Verbal IQ, and Test of the Colorism Hypothesis in the GSS

Recently, the GSS released the survey results for the year 2012. And a skin color variable has been included. But rather than using the SDA program, available here, I used the GSS cumulative datafile 1972-2012 for SPSS, available here. This … Continue reading

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