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How cognitive genetic factors influence fertility outcomes: A mediational SEM analysis

Michael A. Woodley Menie, Joseph A. Schwartz, Kevin M. Beaver
doi: https://doi.org/10.1101/070128
Michael A. Woodley Menie
Department of phychology, Technische Universität Chemnitz, Reichenhainer Str.70,09126 Chemnitz, Germany.Center Leo Apostel for Interdisciplinary Studies, Vrije Universiteit Brussel, Boulevard de la Plaine 2, 1050 Ixelles,Belgium
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Joseph A. Schwartz
School of Criminology and Criminal Justice, University of Nebraska Omaha, 6001 Dodge St, Omaha, NE 68182, USA
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Kevin M. Beaver
College of Criminology and Criminal Justice, Florida State University, 600 W College Ave, Tallahassee, FL 32306,USACenter for Social and Humanities Research, King Abdulaziz University, Abdullah Sulayman Street, Jeddah Saudi Arabia.
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ABSTRACT

Utilizing a newly released cognitive Polygenic Score (PGS) from Wave IV of Add Health (n = 1,886), structural equation models (SEMs) examining the relationship between PGS and fertility (which is approximately 50% complete in the present sample), utilizing measures of verbal IQ and educational attainment as potential mediators, were estimated. The results of indirect pathway models revealed that verbal IQ mediates the positive relationship between PGS and educational attainment, and educational attainment in turn mediates the negative relationship between IQ and a latent fertility measure. The direct path from PGS to fertility was non-significant. The model was robust to controlling for age, sex and race, furthermore the results of a multi-group SEM revealed no significant differences in the estimated path coefficients across sex. These results indicate that those predisposed towards higher IQ by virtue of higher PGS values are also predisposed towards trading fertility against time spent in education, which contributes to those with higher PGS values producing fewer offspring.

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The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. All rights reserved. No reuse allowed without permission.
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Posted August 18, 2016.
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How cognitive genetic factors influence fertility outcomes: A mediational SEM analysis
Michael A. Woodley Menie, Joseph A. Schwartz, Kevin M. Beaver
bioRxiv 070128; doi: https://doi.org/10.1101/070128
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How cognitive genetic factors influence fertility outcomes: A mediational SEM analysis
Michael A. Woodley Menie, Joseph A. Schwartz, Kevin M. Beaver
bioRxiv 070128; doi: https://doi.org/10.1101/070128

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