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Related Experiment Video

Updated: Jul 30, 2025

Use of a Video Scoring Anchor for Rapid Serial Assessment of Social Communication in Toddlers
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Exploring Relationships Between Internalizing Problems and Risky Sexual Behavior: A Twin Study.

Katie N Paulich1,2, Samantha M Freis3,4, Deepika R Dokuru3,4

  • 1Institute for Behavioral Genetics, University of Colorado Boulder, 1480 30th St, Boulder, CO, 80303, USA. katie.paulich@colorado.edu.

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|May 10, 2023
PubMed
Summary

Internalizing problems show a small link to risky sexual behavior (RSB). This study explored this connection in two large twin samples but found limited power to determine underlying genetic or environmental factors.

Keywords:
CADDInternalizingMCTFRRisky sexual behaviorTwin study

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Area of Science:

  • Psychology
  • Behavioral Science
  • Psychopathology

Background:

  • Previous research associates risky sexual behavior (RSB) with externalizing problems and substance use.
  • Limited research exists on the relationship between internalizing problems (INT) and RSB.

Purpose of the Study:

  • To investigate the association between internalizing problems and risky sexual behavior.
  • To examine if this association differs between males and females.
  • To replicate findings using two independent twin samples.

Main Methods:

  • Phenotypic confirmatory factor analysis was employed.
  • Multivariate twin analyses were conducted.
  • Two large twin samples from Colorado (N=2567) and Minnesota (N=1131) were utilized.

Main Results:

  • A small but significant phenotypic association was observed between internalizing problems and risky sexual behavior.
  • The hypothesis regarding sex differences in the association was not fully supported.
  • Limited statistical power hindered the identification of genetic and environmental mechanisms.

Conclusions:

  • The relationship between internalizing problems and risky sexual behavior is complex.
  • Further research is needed to explore sex differences and underlying mechanisms.
  • The study highlights the need for more investigation into the INT-RSB link.