Interrelations between daily stress processes and Big Five personality trait changes over 20 years.
Bibliographic record
Abstract
= 2,022; 55% female) each included daily measures of stressor exposure and negative affect across eight consecutive days (yielding 33,942 days of data across 18 years of adulthood). At each wave, participants reported on their personality traits (i.e., openness, conscientiousness, extraversion, agreeableness, neuroticism). Multilevel structural equation modeling simultaneously modeled stress reactivity at Level 1; longitudinal changes in stress reactivity at Level 2; and the interrelations between changes in stress reactivity and changes in personality traits at Level 3. Higher reactivity at baseline was associated with lower levels of extraversion and conscientiousness and higher levels of neuroticism at baseline. Further, increases in reactivity across the 18-year period were associated with declines in extraversion, agreeableness, and openness. Changes in reactivity were not related to changes in neuroticism or conscientiousness. These findings clarify how changes in daily experiences are related to broader personality changes and inform integrative frameworks of personality development across the adult lifespan. (PsycInfo Database Record (c) 2026 APA, all rights reserved).
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How this classification was reachedexpand
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 | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, 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".