Sources of Differences in Right-Wing Authoritarianism and Social Dominance Orientation from Adolescence to Adulthood: A Multi-Cohort Twin Family Study
Bibliographic record
Abstract
Past research indicates that genetic and environmental sources contribute to Right-Wing Authoritarianism (RWA) and Social Dominance Orientation (SDO). However, less is known about the differences between the sources of variance in RWA and SDO, and how these sources differ across different developmental stages. Based on data from 1440 twin families, including 1198 complete twin pairs, 435 non-twin full siblings, and 2016 parents of twins from the German TwinLife project, nuclear twin family modeling was used to estimate different genetic and environmental variance components of RWA and SDO, and to examine the extent to which the variance components vary across three age cohorts of twins (average age 15, 21, and 27 years). We hypothesized increasing levels of genetic variance across age cohorts, reflecting more active genotype-environment transactions with development, and declining levels of passive genotype-environment correlation (rGE). The model analyses yielded additive and nonadditive genetic factors as well as influences shared in families due to non-genetic intergenerational transmission from parents to offspring and significant passive rGE for RWA. For SDO, passive rGE components, nonadditive genetic components and non-genetic intergenerational transmission were negligible. However, significant individual environmental sources and those only shared by twins were found for both RWA and SDO. Inconsistent with our expectations, passive rGE and genetic variance did not vary significantly across age cohorts. Counterintuitively, the influence of twin-specific shared environmental factors on RWA was larger in adulthood than adolescence, suggesting increasingly relevant environmental influences across developmental periods. These results have important implications for socio-developmental theories on socio-political attitudes.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.003 |
| Meta-epidemiology (narrow) | 0.000 | 0.001 |
| Meta-epidemiology (broad) | 0.000 | 0.001 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".