• wave YS_TRF7

    Study:NTR
    Parent cohort:NTR: Young Netherlands Twin Register
    Publisher: Vrije Universiteit Amsterdam
    The survey for the primary school teachers includes items on the teacher, class and school, functioning of the child, school performance, bullying and victimization (from 2010), and standardized questionnaires on problem behavior, namely the Teacher Report Form (TRF), the short version of the Conners’ Teacher Ratings Scale - Revised (CTRS-R), and the...
    Created March 28, 2023 Updated March 28, 2023
  • wave YS_TRF10

    Study:NTR
    Parent cohort:NTR: Young Netherlands Twin Register
    Publisher: Vrije Universiteit Amsterdam
    The survey for the primary school teachers includes items on the teacher, class and school, functioning of the child, school performance, bullying and victimization (from 2010), and standardized questionnaires on problem behavior, namely the Teacher Report Form (TRF), the short version of the Conners’ Teacher Ratings Scale - Revised (CTRS-R), and the...
    Created March 28, 2023 Updated March 28, 2023
  • wave YS_CITO

    Study:NTR
    Parent cohort:NTR: Young Netherlands Twin Register
    Publisher: Vrije Universiteit Amsterdam
    The CITO-test is a standardized test for educational achievement that is administered in the final grade (when children are 11 or 12 years old) of elementary school (Eindtoets Basisonderwijs 2002, Arnhem: Citogroep, 2002). It consists of multiple choice items in 4 different educational skills, namely Arithmetic, Language, Study Skills, and Science and...
    Created March 28, 2023 Updated March 28, 2023
  • wave T1

    Study:TRAILS
    Parent cohort:TRAILS: Population cohort
    Publisher: University Medical Center Groningen
    TRAILS (TRacking Adolescents' Individual Lives Survey) is an ongoing, multidisciplinary research on the psychological, social and physical development of adolescents and young adults. More than 2500 young people participate, since their tenth or eleventh year. For more than 20 years, these participants have been examined every 2 to 3 years, through...
    Created March 28, 2023 Updated March 28, 2023
  • wave W1

    Study:RADAR
    Parent cohort:RADAR: Old Cohort
    Publisher: Data Archiving and Networked Services Utrecht University
    Wave 1 of the RADAR Old Cohort included around 250 adolescents of about 12/13 years old, including their parents, best friend and sibling.
    Created March 28, 2023 Updated April 4, 2023
  • wave 6 months

    Study:Generation R
    Parent cohort:Generation R: Main Cohort
    Publisher:
    Questionnaire and visits at the research center (Focus cohort) and at the baby well clinic at 6 months.
    Created May 3, 2023 Updated May 3, 2023
  • wave Birth

    Study:Generation R
    Parent cohort:Generation R: Main Cohort
    Publisher:
    Data from birth records, cord blood
    Created May 3, 2023 Updated May 3, 2023
  • wave Mid pregnancy

    Study:Generation R
    Parent cohort:Generation R: Main Cohort
    Publisher:
    Questionnaires, ultrasound, biological samples and hands-on measures in pregnant women in the second trimester of pregnancy.
    Created May 3, 2023 Updated May 3, 2023
  • wave YE_ATTEF2

    Study:NTR
    Parent cohort:NTR: Young Netherlands Twin Register
    Publisher: Vrije Universiteit Amsterdam
    This project is the second measurement of a longitudinal study on the source of individual differences of cognition, attention, and executive functioning from preschool to young adulthood. This project included the measurement five years after baseline and additionally recruited new twin pairs and siblings of the twin pairs. Behavioral data were collected...
    Created March 28, 2023 Updated March 28, 2023
  • wave YC_DSC

    Study:NTR
    Parent cohort:NTR: Young Netherlands Twin Register
    Publisher: Vrije Universiteit Amsterdam
    The purpose of this project was to investigate the relation between Diagnostic and Statistical Manual of Mental Disorders (DSM-IV) diagnosis of ADHD and Child Behavioral Checklist Attention Problems (CBCL-AP) scores. Twins were selected based on their maternal CBCL-AP scores at ages 7, 10 and 12. Twin pairs were selected if at least one of the twins...
    Created March 28, 2023 Updated March 28, 2023
  • wave 6 weeks

    Study:Generation R
    Parent cohort:Generation R: Main Cohort
    Publisher:
    Anthropometrics and motor assessment from visits at the research center (Focus cohort) and baby well clinic at 1 month.
    Created May 3, 2023 Updated May 3, 2023
  • wave Early pregnancy

    Study:Generation R
    Parent cohort:Generation R: Main Cohort
    Publisher:
    Questionnaires, ultrasound, biological samples and hands-on measures in pregnant women in the first trimester of pregnancy.
    Created May 3, 2023 Updated May 3, 2023
  • wave 3 months

    Study:Generation R
    Parent cohort:Generation R: Main Cohort
    Publisher:
    Home environment, motor assessment and anthropometrics from home visit and visit at the baby well clinic at 3 months.
    Created May 3, 2023 Updated May 3, 2023
  • wave 2 months

    Study:Generation R
    Parent cohort:Generation R: Main Cohort
    Publisher:
    Questionnaire and visit at the baby well clinic at 2 months.
    Created May 3, 2023 Updated May 3, 2023
  • wave 4 months

    Study:Generation R
    Parent cohort:Generation R: Main Cohort
    Publisher:
    Anthropometrics from visit at the baby well clinic at 4 months.
    Created May 3, 2023 Updated May 3, 2023
  • wave Late pregnancy

    Study:Generation R
    Parent cohort:Generation R: Main Cohort
    Publisher:
    Questionnaires, ultrasound, biological samples and hands-on measures in pregnant women in the third trimester of pregnancy.
    Created May 3, 2023 Updated May 3, 2023
  • wave W2

    Study:RADAR
    Parent cohort:RADAR: Old Cohort
    Publisher: Data Archiving and Networked Services Utrecht University
    Wave 2 of the RADAR Old Cohort included around 250 adolescents of about 13 years old, including their parents, best friend and sibling.
    Created March 28, 2023 Updated April 4, 2023
  • wave T2

    Study:TRAILS
    Parent cohort:TRAILS: Population cohort
    Publisher: University Medical Center Groningen
    TRAILS (TRacking Adolescents' Individual Lives Survey) is an ongoing, multidisciplinary research on the psychological, social and physical development of adolescents and young adults. More than 2500 young people participate, since their tenth or eleventh year. For more than 20 years, these participants have been examined every 2 to 3 years, through...
    Created March 28, 2023 Updated March 28, 2023
  • wave 1.5 years

    Study:Generation R
    Parent cohort:Generation R: Main Cohort
    Publisher:
    Questionnaire and visit at the baby well clinic at 18 months.
    Created May 3, 2023 Updated May 3, 2023
  • wave YC_ADHMRI

    Study:NTR
    Parent cohort:NTR: Young Netherlands Twin Register
    Publisher: Vrije Universiteit Amsterdam
    Within the ADHD-MRI project, the genetic and environmental influence on ADHD related neurobiological changes were investigated in monozygotic twins. Twins were selected based on their Child Behavior Checklist Attention Problems (CBCL-AP) scores obtained in the regular YNTR survey waves and divided into three groups: discordant pairs (one affected, one...
    Created March 28, 2023 Updated March 28, 2023
You can also access this registry using the API (see API Docs).