Search
Categories
Tags
Archives
- February 2024
- June 2023
- December 2022
- November 2022
- September 2022
- January 2022
- May 2015
- January 2015
- December 2014
- October 2014
- September 2014
- August 2014
- July 2014
- June 2014
- May 2014
- April 2014
- March 2014
- February 2014
- January 2014
- December 2013
- November 2013
- October 2013
- September 2013
- August 2013
- July 2013
- June 2013
- May 2013
- April 2013
- March 2013
- February 2013
- January 2013
- December 2012
- November 2012
- October 2012
- September 2012
- August 2012
- July 2012
- June 2012
- May 2012
- April 2012
- March 2012
- February 2012
- January 2012
Meta
Category Archives: IQ Survey & Analysis
How to calculate and use predicted Y-values in multiple regression
Here, I will explain how to use the so-called “Yhat” or predicted values of Y when doing regression (OLS, logistic and multilevel). (Update 2017) This article is based on my paper: Hu, M. (2017). An update on the secular narrowing of … Continue reading
Posted in IQ Survey & Analysis, Stats, Softwares, Syntax
Tagged IQ
Comments Off on How to calculate and use predicted Y-values in multiple regression
Racial differences in the long-term trend NAEP scores (1975/78-2012)
I analyze the LTT NAEP achievement scores, a public data set available at NCES. In general, minority-majority ethnic groups show a secular decline in d gap, for both math and reading tests, and this occurs at all ages of assessment … Continue reading
Posted in IQ Survey & Analysis
Tagged IQ
Comments Off on Racial differences in the long-term trend NAEP scores (1975/78-2012)
Structural relationship between g, parental SES, and Achievement : Investigation of the g nexus
The present analysis, using the NLSY97, attempts to model the structural relationship between the latent second-order g factor extracted from the 12 ASVAB subtests, the parental SES latent factor from 3 indicators of parental SES, and the GPA latent factor … Continue reading
Posted in IQ Survey & Analysis, Psychometrics
Tagged IQ
Comments Off on Structural relationship between g, parental SES, and Achievement : Investigation of the g nexus
Race-SES Interaction : Some Evidence of Increasing Black-White IQ Differences With SES Levels From Various Survey Data
I present here some more evidence about the race*SES interaction concerning IQ from various survey data. The techniques are employed. Comparison of means among different SES strata, ANCOVA and multiple regression.
Posted in IQ Survey & Analysis
Tagged IQ
Comments Off on Race-SES Interaction : Some Evidence of Increasing Black-White IQ Differences With SES Levels From Various Survey Data
Jensen effect on racial IQ differences and GPA controlling for SES in the NLSY79 and NLSY97
In The g Factor, Jensen (1998, pp. 384-385) states that because races differ in SES levels, the Spearman-Jensen effect (i.e., g-loading correlates) found in racial IQ differences (hispanics, denoted H; blacks, denoted B; whites, denoted W) could simply reflect this … Continue reading
Posted in IQ Survey & Analysis, Psychometrics
Tagged IQ
Comments Off on Jensen effect on racial IQ differences and GPA controlling for SES in the NLSY79 and NLSY97
Using Survey data : Some Technical Notes
When using and studying survey data, some difficulties may emerge especially regarding the specific variables being used. And so, several things must be kept in mind.
Posted in IQ Survey & Analysis
Tagged Uncategorized
Comments Off on Using Survey data : Some Technical Notes
More income for more happiness ? Yes, but…
After analyzing the NLSY97, it appears that religious and rich people reported to be more happy. But controlling for health reduces the influence of these variables. This holds true not only in the white sample, but also in the hispanic … Continue reading
Posted in IQ Survey & Analysis
Tagged NLSY
Comments Off on More income for more happiness ? Yes, but…
IQ advantage of multiracials : A Jensen Effect
In the NLSY97, a Jensen Effect of biracial blacks has been found, using self-reported white ancestry. In the NLSY79, some questionnaires (R00096.00, R00097.00) asked about the respondents’ first and second racial/ethnic origin. When the respondent reported being non-black or white … Continue reading
Posted in IQ Survey & Analysis, Psychometrics
Tagged IQ, NLSY
Comments Off on IQ advantage of multiracials : A Jensen Effect
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
Posted in IQ Survey & Analysis, Psychometrics
Tagged IQ, NLSY
Comments Off on Self-reported white ancestry among US blacks : A Jensen effect
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
Posted in IQ Survey & Analysis, Psychometrics
Tagged IQ, NLSY
Comments Off on IQ Regression to the Mean : the Genetic Prediction Vindicated
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
Posted in IQ Survey & Analysis
Tagged GSS
Comments Off on Skin Color, Verbal IQ, and Test of the Colorism Hypothesis in the GSS
Holes in the Colorism Hypothesis
Introduction. If color-based discrimination becomes more intense at a later age, when darker-skinned individuals face discrimination in the labor market and thus depressing their economic opportunities at every level, for instance, the colorism hypothesis could have argued that IQ measured … Continue reading
Skin Color is Not Driving the Relationship Between Racial Admixture and IQ
Some variables in the Add Health and the NLSY97 allow us to investigate the relationship of skin color with IQ and racial ancestry with IQ (AHPVT scores and ASVAB scores) among the US black population. Given the positive results, a … Continue reading
Posted in IQ Survey & Analysis
Tagged IQ
Comments Off on Skin Color is Not Driving the Relationship Between Racial Admixture and IQ
Determinants of Health (GSS)
Using the General Social Survey data, I try to investigate which factor is the most determinant of health. The present analysis had been edited since I got the SPSS data format available here. (click on “Cumulative Data Set (cross-sectional samples from all years): … Continue reading
Can People Be Trusted (GSS)
Using the General Social Survey data, I try to investigate which factor is the most determinant of health. The present analysis had been edited since I got the SPSS data format available here. (click on “Cumulative Data Set (cross-sectional samples from all years): … Continue reading
Predictors of Belief in Evolution (GSS)
Using the General Social Survey data (SPSS format available here), I try to investigate which factor is the most determinant of belief in evolution. For this purpose, I use the logit regression. (I redid the analysis since I got the SPSS.)
Meng Hu's Blog 