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Source: Science
Resulting in 2 citations.
| 1. |
Heckman, James J. |
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Skill Formation and the Economics of Investing in Disadvantaged Children Science 312,5782 (30 June 2006): 1900-1902 Cohort(s): Children of the NLSY79, NLSY79 Publisher: American Association for the Advancement of Science (AAAS) Keyword(s): Children, Academic Development; Children, Behavioral Development; Family Income; Human Capital; Life Cycle Research; Peabody Individual Achievement Test (PIAT- Math); Skill Formation Permission to reprint the abstract has not been received from the publisher. This paper summarizes evidence on the effects of early environments on child, adolescent, and adult achievement. Life cycle skill formation is a dynamic process in which early inputs strongly affect the productivity of later inputs. |
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Bibliography Citation
Heckman, James J. "Skill Formation and the Economics of Investing in Disadvantaged Children ." Science 312,5782 (30 June 2006): 1900-1902.
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| 2. |
Hedges, Larry V. Nowell, Amy |
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Sex Differences in Mental Test Scores, Variability, and Numbers of High-Scoring Individuals Science 269,5220 (July 7, 1995): 41-45 Cohort(s): NLSY79 Publisher: American Association for the Advancement of Science (AAAS) Keyword(s): Armed Forces Qualifications Test (AFQT); Armed Services Vocational Aptitude Battery (ASVAB); Gender Differences; Intelligence Tests; Test Scores/Test theory/IRT Permission to reprint the abstract has not been received from the publisher. Sex differences in central tendency, variability, and numbers of high scores on mental tests have been extensively studied. Research has not always seemed to yield consistent results, partly because most studies have not used representative samples of national populations. An analysis of mental test scores from six studies that used national probability samples provided evidence that although average sex differences have been generally small and stable over time, the test scores of males consistently have larger variance. Except in tests of reading comprehension, perceptual speed, and associative memory, males typically outnumber females substantially among high-scoring individuals. |
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Bibliography Citation
Hedges, Larry V. and Amy Nowell. "Sex Differences in Mental Test Scores, Variability, and Numbers of High-Scoring Individuals." Science 269,5220 (July 7, 1995): 41-45.
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