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Québec Longitudinal Study of Child Development, 2nd edition (QLSCD 2)

General information

Other name

Growing Up in Québec study

Partners

The Lucie and André Chagnon Foundation, the Ministère de l’Éducation, the Ministère de la Famille, the Ministère de la Santé et des Services sociaux, the Ministère de l’Emploi et de la Solidarité sociale, the Conseil de gestion de l’assurance parentale, and the Institut de la statistique du Québec.

Frequency and editions

Expected duration of the study

Until the participating children reach adulthood

Type of survey

Longitudinal survey, provincial representativeness.

Targeted population

Two groups of children born to mothers residing in Québec.

  • 2018 cohort: Children born between March and September 2018
  • 2020-2021 cohort: Children born between October 2020 and September 2021

Both cohorts exclude children born before 24 weeks or after 42 weeks of gestation, as well as families living in regions very far from large centres (for example, Nord-du-Québec, Nunavik, and Terres-Cries-de-la-Baie-James). Other exclusions could apply.

Sampling and data collection

Households whose main (interviewer-administered) questionnaire was completed.

2018 cohort

  • 2018: 449 participating households
  • 2019: 411 participating households
  • 2020: 180 participating households (only a portion of the sample was invited to participate due to the COVID-19 pandemic)
  • 2021: 332 participating households
  • 2022: 593 participating parents (This data collection only included a self-administered questionnaire for the parents)
  • 2023: 281 participating households
  • 2025: 288 participating households

2020-2021 cohort

  • 2021: 4,703 participating households
  • 2022: 3,879 participating households
  • 2023: 3,589 participating households
  • 2024: 3,484 participating households

Themes

Early childhood: Birth conditions; pregnancy and childbirth; type of childcare; family environment; socioeconomic environment; community environment; school environment; reading habits; technological habits; physical health; relationships with peers, parents and educators; sleep; language; nutrition; social adjustment; mental health; siblings; cognitive development; victimization.

Childhood and adolescence: Relationship with teachers; academic performance and motivation; risk behaviours; work; studies; romantic relationships; financial situation; lifestyle habits; career choice; well-being. Other themes will be added over time.

Technical and methodological documentation

Data collection tools

User Guides, study methodology

 

Publications and data

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