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Author: Nedelec, Joseph L.

Resulting in 3 citations.

1.	Connolly, Eric J. Schwartz, Joseph A. Nedelec, Joseph L. Beaver, Kevin M. Barnes, J. C.
1.	Different Slopes for Different Folks: Genetic Influences on Growth in Delinquent Peer Association and Delinquency During Adolescence Journal of Youth and Adolescence 44,7 (July 2015): 1413-1427. Also: http://link.springer.com/article/10.1007/s10964-015-0299-8/fulltext.html Cohort(s): Children of the NLSY79, NLSY79, NLSY79 Young Adult Publisher: Springer Keyword(s): Armed Forces Qualifications Test (AFQT); Child Self-Administered Supplement (CSAS); Delinquency/Gang Activity; Genetics; Kinship; Modeling, Growth Curve/Latent Trajectory Analysis; Peers/Peer influence/Peer relations; Siblings Permission to reprint the abstract has not been received from the publisher. An extensive line of research has identified delinquent peer association as a salient environmental risk factor for delinquency, especially during adolescence. While previous research has found moderate-to-strong associations between exposure to delinquent peers and a variety of delinquent behaviors, comparatively less scholarship has focused on the genetic architecture of this association over the course of adolescence. Using a subsample of kinship pairs (N = 2379; 52% female) from the National Longitudinal Survey of Youth--Child and Young Adult Supplement (CNLSY), the present study examined the extent to which correlated individual differences in starting levels and developmental growth in delinquent peer pressure and self-reported delinquency were explained by additive genetic and environmental influences. Results from a series of biometric growth models revealed that 37% of the variance in correlated growth between delinquent peer pressure and self-reported delinquency was explained by additive genetic effects, while nonshared environmental effects accounted for the remaining 63% of the variance. Implications of these findings for interpreting the nexus between peer effects and adolescent delinquency are discussed.
	Bibliography Citation Connolly, Eric J., Joseph A. Schwartz, Joseph L. Nedelec, Kevin M. Beaver and J. C. Barnes. "Different Slopes for Different Folks: Genetic Influences on Growth in Delinquent Peer Association and Delinquency During Adolescence." Journal of Youth and Adolescence 44,7 (July 2015): 1413-1427.

2.	Richardson, George B. Chen, Ching-Chen Dai, Chia-Liang Swoboda, Christopher M. Nedelec, Joseph L. Chen, Wei-Wen
2.	Substance Use and Mating Success Evolution and Human Behavior 38,1 (January 2017): 48-57. Also: http://www.sciencedirect.com/science/article/pii/S1090513816301246 Cohort(s): NLSY97 Publisher: Elsevier Keyword(s): Alcohol Use; Cigarette Use (see Smoking); Drug Use; Modeling, Structural Equation; Sexual Activity; Substance Use Psychoactive substance use has been typical of most traditional and modern societies and is maintained in the population despite the potential for abuse and related harms, raising the possibility that it (or its underlying causes) confers fitness benefits that offset its costs. Although it seems plausible that psychoactive substances have facilitated survival among ancestral and modern humans, it is not clear that this enhancement has translated into Darwinian fitness through mating and ultimately reproductive success. In the current study, we discuss potential mechanisms by which substance use might make unique contributions to mating success, attend to the possibility that the effects between substance use and mating success are instead confounded, and use structural equations and nationally representative data to determine whether these effects are more likely causal or spurious. Our findings indicate that once we know participants' scores on "third" variables at each round in early young adulthood, their substance use gives us little additional information about their current prospects for acquiring sexual partners and no additional information about of their future prospects. Thus, if adaptations for substance use evolved, their adaptive value does not seem to be found in mating success.
	Bibliography Citation Richardson, George B., Ching-Chen Chen, Chia-Liang Dai, Christopher M. Swoboda, Joseph L. Nedelec and Wei-Wen Chen. "Substance Use and Mating Success." Evolution and Human Behavior 38,1 (January 2017): 48-57.

3.	Richardson, George B. Dai, Chia-Liang Chen, Ching-Chen Nedelec, Joseph L. Swoboda, Christopher M. Chen, Wei-Wen
3.	Adolescent Life History Strategy in the Intergenerational Transmission and Developmental Stability of Substance Use Journal of Drug Issues 46,2 (April 2016): 102-121. Also: http://jod.sagepub.com/content/46/2/102 Cohort(s): NLSY97 Publisher: College of Criminology and Criminal Justice Keyword(s): Alcohol Use; Cigarette Use (see Smoking); Delinquency/Gang Activity; Depression (see also CESD); Drug Use; Intergenerational Patterns/Transmission; Life Course; Personality/Big Five Factor Model or Traits; Substance Use Permission to reprint the abstract has not been received from the publisher. Research suggests that fast life history strategy (LHS) may be a primary driver of substance use among young adults. However, a recent study reported that (a) young adult fast LHS did not subsume all theorized indicators of LHS during this period and (b) fast LHS among parents did not predict young adult fast LHS or liability for use of common substances. In this study, we used structural equations and national data to test whether these findings generalized to adolescence. In addition, given that LHS and substance use share genetic and neuropsychological bases, we examined whether fast LHS could explain the developmental stability of substance use. Overall, our results extend the findings discussed above and suggest that fast LHS fully explains the developmental stability of substance use among youth. We discuss implications for life history models, research applying life history theory and substance use, and substance abuse prevention and treatment.
	Bibliography Citation Richardson, George B., Chia-Liang Dai, Ching-Chen Chen, Joseph L. Nedelec, Christopher M. Swoboda and Wei-Wen Chen. "Adolescent Life History Strategy in the Intergenerational Transmission and Developmental Stability of Substance Use." Journal of Drug Issues 46,2 (April 2016): 102-121.

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