The Decoupling of Sex and Marriage: Cohort Trends in Who Did and Did Not Delay Sex until Marriage for U.S. Women Born 1938–1985
Why this work is in the frame
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Bibliographic record
Abstract
In this study, we examine cohort trends in who did and did not delay sex until marriage for U.S. women born between 1938 and 1985 using Cycles 3–7 of the National Survey of Family Growth. We find that roughly half of women born in the late 1930s and early 1940s were already sexually active prior to marriage. Especially rapid increases in not delaying sex until marriage occurred for women born between 1942–43 and 1954–55, with subsequent cohorts experiencing less rapid increases and with premarital sex reaching a plateau of roughly 85 to 90 percent for those born after 1962. Our continuous-time competing-risk models illustrate the methodological dangers of using single-decrement procedures for questions such as who did and did not delay sex until marriage. More generally, our findings suggest that the decoupling of sex and marriage was underway well before the so-called 'sexual revolution' of the late 1960s and early 1970s.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.007 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.003 | 0.006 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 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 it