Childhood poverty and behavior problems in early adolescence : examining the links over time and potential mechanisms
Bibliographic record
Abstract
Background: Poverty is a well-established risk factor for behavior problems among children and adolescents. Yet, research is needed to clarify whether the association varies over the course of development, as well as the mechanisms through which such associations may occur. The purpose of the current work is to investigate specific links between poverty and the behavior problems, using statistical and epidemiological approaches applied to longitudinal data to ascertain predictive pathways. Objectives: The overall aim of the present work is to assess the risk of behavior problems and underlying mechanisms related to poverty exposure at various stages of development. Three research objectives, each corresponding to a research paper forming the main body of this dissertation, are : (1) To investigate the potential for mediators relating to family characteristics in the association between chronic poverty and behavior problems during early childhood; (2) To investigate the patterns of change in the association between poverty and behavior problems over the course of childhood; and (3) To examine the timing and duration of childhood poverty in the prediction of behavior problems in early adolescence. Methods: The data originated from the 1998–2011 waves of the Quebec Longitudinal Study of Child Development (QLSCD), a population-based longitudinal study of children followed prospectively from 0.5 to 13 years (N=2120). Poverty was defined based on low-income lines defined by Statistics Canada. Outcomes variables were behavior problems reported by mothers and teachers, including hyperactivity, opposition and physical aggression. Multiple regression analysis and linear mixed-effects models were applied to estimate the longitudinal associations between poverty and behavior problems. Implications: The overall scope of this thesis resides in informing the timing and targets for prevention programs aimed at reducing the detrimental impact of poverty on behavior problems. Future initiatives may consider time and duration of exposure to poverty when prioritizing resources aimed at reducing poverty in families with young children.
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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 | 0.004 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.003 | 0.004 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.004 | 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".