ex1033: IQ Score and Income
Description
This is a subset of the National Longitudinal Study of Youth (NLSY79) data,
with annual incomes in 2005 (in U.S. dollars, as Recorded in a 2006 interview);
scores on the Word Knowledge, Paragraph Comprehension, Arithmetic Reasoning,
and Mathematics Knowledge portions of the Armed Forces Vocational Aptitude
Battery (ASVAB) of tests taken in 1981; and the percentile score of the Armed
Forces Qualifying Test (AFQT), which is a linear combination of the four
component tests mentioned above (but note that AFQT reported here is the
percentile, which is not a linear combination of the four component scores).
Which of the five test scores seem to be the most important predictors of 2005
income? Is the AFQT sufficient by itself?source
Ramsey, F.L. and Schafer, D.W. (2013). The Statistical Sleuth: A
Course in Methods of Data Analysis (3rd ed), Cengage Learning.References
National Longitudinal Survey of Youth, U.S. Bureau of Labor Statistics,
http://www.bls.gov/nls/home.htm (May 8, 2008).