Format

Send to

Choose Destination
Child Dev. 2011 Jul-Aug;82(4):1327-44. doi: 10.1111/j.1467-8624.2011.01607.x. Epub 2011 Jun 16.

Why don't smart teens have sex? A behavioral genetic approach.

Author information

1
University of Texas at Austin, USA. harden@psy.utexas.edu

Abstract

Academic achievement and cognitive ability have been shown to predict later age at first sexual intercourse. Using a sample of 536 same-sex twin pairs who were followed longitudinally from adolescence to early adulthood, this study tested whether relations between intelligence, academic achievement, and age at first sex were due to unmeasured genetic and environmental differences between families. Twins who differed in their intelligence or their academic achievement did not differ in their age at first sex. Rather, the association between intelligence and age at first sex could be attributed entirely to unmeasured environmental differences between families, whereas the association between academic achievement and age at first sex could be attributed entirely to genetic factors.

PMID:
21679172
PMCID:
PMC3134531
DOI:
10.1111/j.1467-8624.2011.01607.x
[Indexed for MEDLINE]
Free PMC Article

Supplemental Content

Full text links

Icon for Wiley Icon for PubMed Central
Loading ...
Support Center