Référence bibliographique 
Vergunst, Francis, Tremblay, Richard E., Vitaro, Frank, Nagin, Daniel, Park, Jungwee, Algan, Yann, Beasley, Elizabeth et Côté, Sylvana M. 2023. «Behaviors in Kindergarten Are Associated with Trajectories of Long-Term Welfare Receipt: A 30-year Population-Based Study ». Developement and Psychopathology, vol. 35, no 1, p. 119-129.
«The aims of this study were twofold. First, to create trajectories of welfare receipt from age 18–35 years in a population-based sample of males and females. Second, to examine the association between kindergarten behaviors – inattention, hyperactivity, aggression–opposition, anxiety, and prosociality – and trajectories of welfare receipt, after adjustment for the child’s IQ [Intelligence Quotient] and family background.» (p. 120-121)
«Based on the literature reviewed [...], it was expected that inattention and aggression–opposition would be most strongly associated with welfare receipt, while prosocial behaviors would be negatively associated with welfare receipt.» (p. 121)
«This study used data from the Quebec Longitudinal Study of Kindergarten Children, a population-based sample of children born in 1980/1981 (n = 3,020).» (p. 121) «The sample comprised 2,000 randomly selected children (1,001 boys) and 1,017 children (593 boys) who scored at or above the 80th percentile for disruptive behaviors at the end of kindergarten (age 5–6 years) with gender-specific cutoffs.» (p. 121) «Outcome data were obtained from Statistics Canada through a data linkage of individual tax return records with the Quebec Longitudinal Study of Kindergarten Children birth cohort.» (p. 121)
Type de traitement des données :
«From age 18 to 35 years, around 81% of the participants followed a trajectory of low receipt, 9% of declining receipt, 5% of rising receipt, and 5% of chronic receipt. Kindergarten inattention and aggression–opposition were independently associated with increased risk of following trajectories of declining, rising, and chronic welfare receipt, while prosociality was associated with a lower risk of following a chronic trajectory. This study suggests that it may be possible to identify children at risk of long-term economic aversity based on a single teacher-rated behavioral assessment made in kindergarten, which has important implications for early screening and prevention.» (p. 123) «Family adversity was the strongest predictor of welfare receipt […] followed by child IQ and participant sex.» (p. 124)