Positive urgency partially mediates the relationship between childhood adversity and problems associated with substance use in an undergraduate population
Bibliographic record
Abstract
BACKGROUND: Childhood adversity predicts the development of substance use problems in young adulthood. Building on past work examining the mediating role of impulsivity in the relationship between childhood maltreatment and substance use in alcohol and nicotine users, this study examined the relationship with other substances in a representative undergraduate sample. In addition, the study aimed to determine whether there was convergence in findings between different measures of childhood adversity and impulsivity. METHOD: 309 undergraduate students completed self-report questionnaires assessing childhood adversity (Childhood Trauma Questionnaire - CTQ; Adverse Childhood Experience Scale - ACE), impulsivity (Short UPPS-P; Barratt Impulsivity Scale - BIS-11) and problems associated with substance use (Drug Abuse Screening Test - DAST-10). RESULTS: = 0.0017, 95% CI [0.0002, 0.0054]). CONCLUSION: Positive urgency partially mediated the relationship between childhood maltreatment and substance use problems for both the CTQ and ACE. While these results are consistent with past studies showing a selective mediation effect of positive urgency in a sample of young adults, they are inconsistent with those showing a selective mediation effect of negative urgency in a sample of heavy drinkers. Together, these findings suggest that the relationship between childhood adversity, impulsivity, and substance use-related problems may be influenced by experience.
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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 | 0.005 |
| Meta-epidemiology (narrow) | 0.000 | 0.001 |
| Meta-epidemiology (broad) | 0.000 | 0.001 |
| Bibliometrics | 0.000 | 0.000 |
| 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) | 0.005 | 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".