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Updated: Jul 8, 2026

Following the Dynamics of Structural Variants in Experimentally Evolved Populations
Published on: February 3, 2023
Dynamics of attitudes and genetic processes.
Stephen J Guastello1, Denise D Guastello
1Department of Psychology, Marquette University, Milwaukee, WI 53201-1881, USA. stephen.guastello@marquette.edu
Genetic influences on attitudes are increasingly recognized. This study suggests a nonlinear model better predicts generational changes in authoritarian attitudes, projecting stabilization rather than continued division.
Area of Science:
- Psychology
- Behavioral Genetics
- Sociology
Background:
- Traditional views posit attitudes are learned behaviors.
- Emerging research indicates a genetic component to attitudes, especially those deemed important.
- Authoritarianism is increasingly linked to genetic predispositions.
Purpose of the Study:
- To investigate whether linear or nonlinear models better describe generational shifts in authoritarian attitudes.
- To compare predictive accuracy of linear versus nonlinear models for attitude change.
Main Methods:
- Surveyed 372 college students, their mothers, and fathers using an attitude questionnaire.
- Applied both linear and nonlinear statistical models to analyze generational attitude data.
Main Results:
- The nonlinear model (R2 = .09) showed a slightly better fit than the linear model (R2 = .08).
- Linear models forecast a continuing societal split between authoritarians and non-authoritarians.
- Nonlinear models predict a stabilization of authoritarian attitudes in future generations.
Conclusions:
- Generational changes in authoritarian attitudes may be better represented by a nonlinear trajectory.
- Future societal structures regarding authoritarianism might stabilize rather than diverge, according to nonlinear predictions.
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