Dataset

Strengths and Difficulties Questionnaire (SDQ)

The Strengths and Difficulties Questionnaire (SDQ) is a brief questionnaire for assessing the psychosocial adjustment of children and adolescents. Versions are available for parents and teachers of 4- to 16-year-olds, and a nearly identical version can be completed independently by 11- to 16-years olds. The SDQ differs from related instruments in that it is very short, with 25 items that are divided into five scales: emotional symptoms, conduct problems, hyperactivity-inattention, peer problems and prosocial behavior.

In RADAR G3, only the Prosocial behavior (5 items) and Peer problems (5 items) subscales were included.

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Keywords	psychosocial adjustment emotional symptom conduct problem hyperactivity inattention prosocial behavior peer problem aggression anxiety depression externalizing behavior internalizing behavior rule-breaking social behavior social interaction social functioning social relationship attention impulsivity emotion regulation social competence problem behavior social cognition
Constructs	sociocognitive and emotional development personality
Waves	Third Generation G3 - T2 PC 24 months - 32 months From 2015-01-01 (ongoing) G3 - T3 PC 4.5 - 5.5 years From 2018-01-01 (ongoing)
Mode of collection	SelfAdministeredQuestionnaire
Analysis unit	Individual
Instrument name	Strengths and Difficulties Questionnaire (SDQ)
Measure name	Social competence
References	van Widenfelt, B. M., Goedhart, A. W., Treffers, P. D. A., & Goodman, R. (2003). Dutch version of the Strengths and Difficulties Questionnaire (SDQ). European Child & Adolescent Psychiatry, 12(6), 281–289. https://doi.org/10.1007/s00787-003-0341-3 Goodman, R. (1997). The Strengths and Difficulties Questionnaire: A Research Note. Journal of Child Psychology and Psychiatry, 38(5), 581–586. Portico. https://doi.org/10.1111/j.1469-7610.1997.tb01545.x GOODMAN, R. (2001). Psychometric Properties of the Strengths and Difficulties Questionnaire. Journal of the American Academy of Child & Adolescent Psychiatry, 40(11), 1337–1345. https://doi.org/10.1097/00004583-200111000-00015

Measure was collected within the following cohort study:

Research on Adolescent Development and Relationships Cohort study

Purpose	The goal of RADAR is to investigate the normal, but also problematic development of adolescents. During high school, adolescents experience a period of major changes, such as changes in classmates and friends. But it is also a period of bodily changes, changes in behavior and in becoming more independent. During adolescence, there is an increased risk of depression and anxiety. Sometimes, antisocial behavior increases as well. Adolescence is therefore a period in which some adolescents develop problems, but others don’t. In RADAR, we investigate which factors are associated with a healthy and a problematic development of adolescents. By providing reliable information about possible causes and risk factors for developing problem behavior, support programs and interventions can be modified to become more effective.
description
Alternate title	RADAR, RADAR study
Data access information	To access RADAR data, please follow the instructions in the RADAR publication protocol and the data request form. This form should contain the theoretical rationale, research questions, hypotheses, and a description of planned statistical analyses. Once the data request is approved by the principal investigators of RADAR, researchers will get access to the requested data. https://doi.org/10.17026%2Fdans-zrb-v5wp
Publisher	Utrecht University
Principal investigators	Branje, Susan Utrecht University Meeus, Wim Utrecht University
Cohort study international identifier
Language	NL
Funding information	Dutch Research Council GB-MAGW 480-03-005 Funder identifier https://ror.org/04jsz6e67 Funder identifier type ROR Funder identifier type URI https://ror.org/ Funder award title Funder award URI Dutch Research Council GB-MAGW 480-08-006 Funder identifier https://ror.org/04jsz6e67 Funder identifier type ROR Funder identifier type URI https://ror.org/ Funder award title Funder award URI Stichting Achmea Slachtoffer en Samenleving Funder identifier https://ror.org/033hwwn95 Funder identifier type ROR Funder identifier type URI https://ror.org/ Funder award title Funder award URI Dutch Research Council 024.001.003 Funder identifier https://ror.org/04jsz6e67 Funder identifier type ROR Funder identifier type URI https://ror.org/ Funder award title Funder award URI European Research Council (ERC) ERC-2017-CoG - 773023 INTRANSITION Funder identifier https://ror.org/0472cxd90 Funder identifier type ROR Funder identifier type URI https://ror.org/ Funder award title Funder award URI
Contact information	RADAR Team Utrecht University RADAR@uu.nl
References
Additional info (URL)
Additional information
Contributors	RADAR management team Utrecht University
Time method	Longitudinal
Universe	The participants of RADAR were recruited from randomly selected schools in the center and west of the Netherlands and consist of three groups: RADAR Young, RADAR Old and RADAR G3 (the next generation). RADAR Young consists of 497 adolescents of Dutch descent who were 12 years old at the start of RADAR. RADAR also followed 190 Moroccan adolescents aged 12 to 17. This group no longer participates in RADAR. RADAR Old consists of 233 adolescents of Dutch descent, who were 15 years old at the start of RADAR. RADAR G3 consists of RADAR participants who will or have become parents of a child younger than 7 years old themselves. Parents of a step-, adopted or foster child are also invited to participate in RADAR G3.

Measure was collected within the following cohort(s):

RADAR: Third Generation Cohort

Alternate title	RADAR G3, RADAR Third Generation
Description	Since 2013, the target and sibling participants in RADAR-Young and RADAR-Old who will become a parent or who have children are invited to participate with one of their children in additional data collection centering around RADAR-G3: the next generation. Four waves of data collection are currently conducted: in infancy, toddlerhood, the preschool years, and middle childhood. Participants and their partner fill out questionnaires about their child’s temperament, developmental milestones, psychosocial adjustment, and child-rearing when their 3rd generation child is 3 months, 2 years, 4.5 years and 7 years old. In addition, a home visit is conducted when the child is 2.5 years old and 7.5 years old, during which parent-child interaction tasks, and child social competence and self-regulation tasks are administered. A school assessment takes place at age 5, when teachers are asked to fill out a questionnaire about the child’s psychosocial adjustment.
Purpose	RADAR - The Next Generation aims to model a) three-generational continuity and discontinuity in interpersonal relationships and behavior within families, b) continuity and discontinuity between G1-G2 parenting and G2-G3 parenting, and c) test for situational and individual moderators that make or break continuity between generations.
Publisher	Utrecht University
Creators	Branje, Susan Utrecht University Meeus, Wim Utrecht University
Language	NL
Cohort international identifier
Funding information	Dutch Research Council GB-MAGW 480-03-005 Funder identifier https://ror.org/04jsz6e67 ROR Identifier type URI https://ror.org/ Funder award title Funder award URI Dutch Research Council GB-MAGW 480-08-006 Funder identifier https://ror.org/04jsz6e67 ROR Identifier type URI https://ror.org/ Funder award title Funder award URI Stichting Achmea Slachtoffer en Samenleving Funder identifier https://ror.org/033hwwn95 ROR Identifier type URI https://ror.org/ Funder award title Funder award URI Dutch Research Council 024.001.003 Funder identifier https://ror.org/04jsz6e67 ROR Identifier type URI https://ror.org/ Funder award title Funder award URI European Research Council (ERC) ERC-2017-CoG - 773023 INTRANSITION Funder identifier https://ror.org/0472cxd90 ROR Identifier type URI https://ror.org/ Funder award title Funder award URI
Cohort reference papers
Classification
Contact information
Waves
Contributors	Geeraerts, Sanne Utrecht University van den Hurk, Gaby Utrecht University van Meegen, Marije Utrecht University RADAR management team Utrecht University
References	Branje, S., Geeraerts, S., de Zeeuw, E. L., Oerlemans, A. M., Koopman-Verhoeff, M. E., Schulz, S., ... & Boomsma, D. I. (2020). Intergenerational transmission: Theoretical and methodological issues and an introduction to four Dutch cohorts. Developmental Cognitive Neuroscience, 45, 100835. DOI: https://doi.org/10.1016/j.dcn.2020.100835
Country code	NL
Geographic location	Mid- and West-Netherlands
Lowest geographic reference	Street
Highest geographic reference	Country
Cohort universe description	Dutch parents and their children who are in their infancy (around 3 months old), toddlerhood (around 2 years old), the preschool years (around 4.5 years old) and middle childhood (around 7 years old).
Analysis unit
Additional info (URL)
Additional information
Time method	Longitudinal.CohortEventBased

Measure was collected within the following wave(s):

G3 - T2 Wave

Wave alternate title	2 years, W2, Second measurement, 2.5 years, Toddlerhood, G3_2-2.5y
Short description of the wave	In wave 2 of the RADAR-G3 Cohort, the (now grown-up) RADAR targets and the target's siblings, and their partner filled out questionnaires about their child's (G3) temperament, developmental milestones, psychosocial adjustment, and child-rearing when that child was around 2 years old. These questionnaires were followed by a home visit at around 2.5 years old where the target/sibling and their child performed parent-child interaction tasks and the child performed social competence and self-regulation tasks.
Type of StudyUnit
Publisher	Utrecht University
Creators	Branje, Susan Utrecht University Meeus, Wim Utrecht University
Funding information	024.001.003 Funder identifier ROR Identifier type URI https://ror.org/ Funder award title Funder award URI
References
(sub) cohort	RADAR: Third Generation
Life stage
Coverage percentage of the measurement for this wave
Start date wave collection	2015-01-01
End date wave collection
Wave universe description	24 months - 32 months
Stage of measurement
Language
Description of physical data product	Digital files
Additional info (URL)
Additional information
Contributors	Geeraerts, Sanne Utrecht University van den Hurk, Gaby Utrecht University van Meegen, Marije Utrecht University Kruidhof, Jorien Utrecht University RADAR management team Utrecht University

G3 - T3 Wave

Wave alternate title	4.5 years, W3, Third measurement, 5 years, School assessment, Preschool, G3_4.5-5y
Short description of the wave	In wave 3 of the RADAR-G3 Cohort, the (now grown-up) RADAR targets and the target's siblings, and their partner filled out questionnaires about their child's (G3) temperament, developmental milestones, psychosocial adjustment, and child-rearing when that child was around 4.5 years old. These were followed by a questionnaire about the child's psychosocial adjustment administered to the child's teacher at around 5 years old.
Type of StudyUnit
Publisher	Utrecht University
Creators	Branje, Susan Utrecht University Meeus, Wim Utrecht University
Funding information	024.001.003 Funder identifier ROR Identifier type URI https://ror.org/ Funder award title Funder award URI
References
(sub) cohort	RADAR: Third Generation
Life stage
Coverage percentage of the measurement for this wave
Start date wave collection	2018-01-01
End date wave collection
Wave universe description	4.5 - 5.5 years
Stage of measurement
Language
Description of physical data product	Digital files
Additional info (URL)
Additional information
Contributors	Geeraerts, Sanne Utrecht University van den Hurk, Gaby Utrecht University van Meegen, Marije Utrecht University Kruidhof, Jorien Utrecht University RADAR management team Utrecht University

You can also access this dataset using the API (see API Docs).

author	None
author_email	None
creator_user_id	34768773-4537-4d74-8d9d-11e2b32cbbaf
dc_additional_info	In RADAR G3, only the Prosocial behavior (5 items) and Peer problems (5 items) subscales were included.
dc_analysis_unit	{Individual}
dc_cohort	RADAR G3
dc_common_id	0067_CD2
dc_instrument_name	Strengths and Difficulties Questionnaire (SDQ)
dc_measure_name	Social competence
id	0a5ef663-713a-4cae-9486-18cf97244228
isopen	False
license_title	None
maintainer	None
maintainer_email	None
metadata_created	2024-10-17T12:16:21.336878
metadata_modified	2024-10-20T12:39:16.336648
name	ae92ff0a639c7c24973f6a05b93136f8
notes	The Strengths and Difficulties Questionnaire (SDQ) is a brief questionnaire for assessing the psychosocial adjustment of children and adolescents. Versions are available for parents and teachers of 4- to 16-year-olds, and a nearly identical version can be completed independently by 11- to 16-years olds. The SDQ differs from related instruments in that it is very short, with 25 items that are divided into five scales: emotional symptoms, conduct problems, hyperactivity-inattention, peer problems and prosocial behavior.
num_resources	0
num_tags	0
organization	{'id': 'e738fcd6-a344-4dae-a4b3-9f3d072f4614', 'name': 'radar', 'title': 'RADAR', 'type': 'organization', 'description': 'RADAR (Research on Adolescent Development And Relationships) is a longitudinal study that started in 2005. RADAR focuses on the interactions and relationships of adolescents with parents and peers, their emotional state, personality, identity, and internalizing and externalizing problem behavior. RADAR investigates the development of about 800 participants from early adolescence to adulthood. Additionally, their parent(s), intimate partner, brother or sister, and (best) friend also participate in the study.', 'image_url': 'https://data.individualdevelopment.nl/img/logo_radar.jpg', 'created': '2024-10-17T13:43:36.351399', 'is_organization': True, 'approval_status': 'approved', 'state': 'active'}
owner_org	e738fcd6-a344-4dae-a4b3-9f3d072f4614
private	False
state	active
title	Strengths and Difficulties Questionnaire (SDQ)
type	measure
cohort	[{'cohort_alternate_title': ['RADAR G3', 'RADAR Third Generation'], 'cohort_description': 'Since 2013, the target and sibling participants in RADAR-Young and RADAR-Old who will become a parent or who have children are invited to participate with one of their children in additional data collection centering around RADAR-G3: the next generation. Four waves of data collection are currently conducted: in infancy, toddlerhood, the preschool years, and middle childhood. Participants and their partner fill out questionnaires about their child’s temperament, developmental milestones, psychosocial adjustment, and child-rearing when their 3rd generation child is 3 months, 2 years, 4.5 years and 7 years old. In addition, a home visit is conducted when the child is 2.5 years old and 7.5 years old, during which parent-child interaction tasks, and child social competence and self-regulation tasks are administered. A school assessment takes place at age 5, when teachers are asked to fill out a questionnaire about the child’s psychosocial adjustment.', 'cohort_language': 'NL', 'cohort_purpose': 'RADAR - The Next Generation aims to model a) three-generational continuity and discontinuity in interpersonal relationships and behavior within families, b) continuity and discontinuity between G1-G2 parenting and G2-G3 parenting, and c) test for situational and individual moderators that make or break continuity between generations.', 'cohort_spatial_country_code': 'NL', 'cohort_spatial_geographic_location': 'Mid- and West-Netherlands', 'cohort_spatial_highest_reference': 'Country', 'cohort_spatial_lowest_reference': 'Street', 'cohort_time_method': 'Longitudinal.CohortEventBased', 'cohort_title': 'RADAR: Third Generation', 'cohort_universe': 'Dutch parents and their children who are in their infancy (around 3 months old), toddlerhood (around 2 years old), the preschool years (around 4.5 years old) and middle childhood (around 7 years old).', 'cohort_contributor': [{'cohort_contributor': 'Geeraerts, Sanne', 'cohort_contributor_affiliation': 'Utrecht University', 'cohort_contributor_affiliation_identifier': 'https://ror.org/04pp8hn57', 'cohort_contributor_affiliation_identifier_scheme': 'ROR', 'cohort_contributor_affiliation_identifier_schemeuri': 'https://ror.org/', 'cohort_contributor_identifier_schemeuri': 'https://orcid.org/', 'cohort_contributor_identifier_type': 'ORCID', 'cohort_contributor_pid': '0000-0001-5513-5808'}, {'cohort_contributor': 'van den Hurk, Gaby', 'cohort_contributor_affiliation': 'Utrecht University', 'cohort_contributor_affiliation_identifier': 'https://ror.org/04pp8hn57', 'cohort_contributor_affiliation_identifier_scheme': 'ROR', 'cohort_contributor_affiliation_identifier_schemeuri': 'https://ror.org/', 'cohort_contributor_identifier_schemeuri': '', 'cohort_contributor_identifier_type': '', 'cohort_contributor_pid': ''}, {'cohort_contributor': 'van Meegen, Marije', 'cohort_contributor_affiliation': 'Utrecht University', 'cohort_contributor_affiliation_identifier': 'https://ror.org/04pp8hn57', 'cohort_contributor_affiliation_identifier_scheme': 'ROR', 'cohort_contributor_affiliation_identifier_schemeuri': 'https://ror.org/', 'cohort_contributor_identifier_schemeuri': '', 'cohort_contributor_identifier_type': '', 'cohort_contributor_pid': ''}, {'cohort_contributor': 'RADAR management team', 'cohort_contributor_affiliation': 'Utrecht University', 'cohort_contributor_affiliation_identifier': 'https://ror.org/04pp8hn57', 'cohort_contributor_affiliation_identifier_scheme': 'ROR', 'cohort_contributor_affiliation_identifier_schemeuri': 'https://ror.org/', 'cohort_contributor_identifier_schemeuri': 'https://uu.nl/', 'cohort_contributor_identifier_type': 'url', 'cohort_contributor_pid': 'https://www.uu.nl/en/research/radar/radar-team'}], 'cohort_creator': [{'cohort_creator_affiliation': 'Utrecht University', 'cohort_creator_affiliation_identifier': 'https://ror.org/04pp8hn57', 'cohort_creator_affiliation_identifier_scheme': 'ROR', 'cohort_creator_affiliation_identifier_schemeuri': 'https://ror.org/', 'cohort_creator_identifier_schemeuri': 'https://orcid.org/', 'cohort_creator_identifier_type': 'ORCID', 'cohort_creator_name': 'Branje, Susan', 'cohort_creator_pid': '0000-0002-9999-5313'}, {'cohort_creator_affiliation': 'Utrecht University', 'cohort_creator_affiliation_identifier': 'https://ror.org/04pp8hn57', 'cohort_creator_affiliation_identifier_scheme': 'ROR', 'cohort_creator_affiliation_identifier_schemeuri': 'https://ror.org/', 'cohort_creator_name': 'Meeus, Wim'}], 'cohort_funding': [{'cohort_funder': 'Dutch Research Council', 'cohort_funder_identifier': 'https://ror.org/04jsz6e67', 'cohort_funder_identifier_schemuri': 'https://ror.org/', 'cohort_funder_identifier_type': 'ROR', 'cohort_grant_number': 'GB-MAGW 480-03-005'}, {'cohort_funder': 'Dutch Research Council', 'cohort_funder_identifier': 'https://ror.org/04jsz6e67', 'cohort_funder_identifier_schemuri': 'https://ror.org/', 'cohort_funder_identifier_type': 'ROR', 'cohort_grant_number': 'GB-MAGW 480-08-006'}, {'cohort_funder': 'Stichting Achmea Slachtoffer en Samenleving', 'cohort_funder_identifier': 'https://ror.org/033hwwn95', 'cohort_funder_identifier_schemuri': 'https://ror.org/', 'cohort_funder_identifier_type': 'ROR', 'cohort_grant_number': ''}, {'cohort_funder': 'Dutch Research Council', 'cohort_funder_identifier': 'https://ror.org/04jsz6e67', 'cohort_funder_identifier_schemuri': 'https://ror.org/', 'cohort_funder_identifier_type': 'ROR', 'cohort_grant_number': '024.001.003'}, {'cohort_funder': 'European Research Council (ERC)', 'cohort_funder_identifier': 'https://ror.org/0472cxd90', 'cohort_funder_identifier_schemuri': 'https://ror.org/', 'cohort_funder_identifier_type': 'ROR', 'cohort_grant_number': 'ERC-2017-CoG - 773023 INTRANSITION'}], 'cohort_publisher': [{'cohort_publisher_identifier': 'https://ror.org/04pp8hn57', 'cohort_publisher_identifier_type': 'ROR', 'cohort_publisher_name': 'Utrecht University'}], 'cohort_references': [{'cohort_reference_citation': 'Branje, S., Geeraerts, S., de Zeeuw, E. L., Oerlemans, A. M., Koopman-Verhoeff, M. E., Schulz, S., ... & Boomsma, D. I. (2020). Intergenerational transmission: Theoretical and methodological issues and an introduction to four Dutch cohorts. Developmental Cognitive Neuroscience, 45, 100835. DOI: https://doi.org/10.1016/j.dcn.2020.100835', 'cohort_reference_identifier': 'https://doi.org/10.1016/j.dcn.2020.100835', 'cohort_reference_identifier_type': 'DOI', 'cohort_reference_type': 'IsDescribedBy'}]}]
dc_DOI	[{'dc_identifier_type': 'DOI', 'dc_pid': '10.60641/snbe-f345'}]
dc_constructs	[{'dc_construct': 'sociocognitive and emotional development'}, {'dc_construct': 'personality'}]
dc_labels	[{'dc_label': 'psychosocial adjustment'}, {'dc_label': 'emotional symptom'}, {'dc_label': 'conduct problem'}, {'dc_label': 'hyperactivity'}, {'dc_label': 'inattention'}, {'dc_label': 'prosocial behavior'}, {'dc_label': 'peer problem'}, {'dc_label': 'aggression'}, {'dc_label': 'anxiety'}, {'dc_label': 'depression'}, {'dc_label': 'externalizing behavior'}, {'dc_label': 'internalizing behavior'}, {'dc_label': 'rule-breaking'}, {'dc_label': 'social behavior'}, {'dc_label': 'social interaction'}, {'dc_label': 'social functioning'}, {'dc_label': 'social relationship'}, {'dc_label': 'attention'}, {'dc_label': 'impulsivity'}, {'dc_label': 'emotion regulation'}, {'dc_label': 'social competence'}, {'dc_label': 'problem behavior'}, {'dc_label': 'social cognition'}]
dc_measurement_references	[{'dc_measurements_references_citation': 'van Widenfelt, B. M., Goedhart, A. W., Treffers, P. D. A., & Goodman, R. (2003). Dutch version of the Strengths and Difficulties Questionnaire (SDQ). European Child & Adolescent Psychiatry, 12(6), 281–289. https://doi.org/10.1007/s00787-003-0341-3\n', 'dc_measurements_references_doi': 'https://doi.org/10.1007/s00787-003-0341-3'}, {'dc_measurements_references_citation': 'Goodman, R. (1997). The Strengths and Difficulties Questionnaire: A Research Note. Journal of Child Psychology and Psychiatry, 38(5), 581–586. Portico. https://doi.org/10.1111/j.1469-7610.1997.tb01545.x\n', 'dc_measurements_references_doi': 'https://doi.org/10.1111/j.1469-7610.1997.tb01545.x'}, {'dc_measurements_references_citation': 'GOODMAN, R. (2001). Psychometric Properties of the Strengths and Difficulties Questionnaire. Journal of the American Academy of Child & Adolescent Psychiatry, 40(11), 1337–1345. https://doi.org/10.1097/00004583-200111000-00015\n', 'dc_measurements_references_doi': 'https://doi.org/10.1097/00004583-200111000-00015'}]
dc_modes_of_collection	[{'dc_mode_of_collection': 'SelfAdministeredQuestionnaire'}]
measure_age_range	[{'measure_age_month': 24}, {'measure_age_month': 25}, {'measure_age_month': 26}, {'measure_age_month': 27}, {'measure_age_month': 28}, {'measure_age_month': 29}, {'measure_age_month': 30}, {'measure_age_month': 31}, {'measure_age_month': 32}, {'measure_age_month': 54}, {'measure_age_month': 55}, {'measure_age_month': 56}, {'measure_age_month': 57}, {'measure_age_month': 58}, {'measure_age_month': 59}, {'measure_age_month': 60}, {'measure_age_month': 61}, {'measure_age_month': 62}, {'measure_age_month': 63}, {'measure_age_month': 64}, {'measure_age_month': 65}, {'measure_age_month': 66}]
study	[{'study_alternate_title': ['RADAR', 'RADAR study'], 'study_language': 'NL', 'study_purpose': 'The goal of RADAR is to investigate the normal, but also problematic development of adolescents. During high school, adolescents experience a period of major changes, such as changes in classmates and friends. But it is also a period of bodily changes, changes in behavior and in becoming more independent. During adolescence, there is an increased risk of depression and anxiety. Sometimes, antisocial behavior increases as well. Adolescence is therefore a period in which some adolescents develop problems, but others don’t. In RADAR, we investigate which factors are associated with a healthy and a problematic development of adolescents. By providing reliable information about possible causes and risk factors for developing problem behavior, support programs and interventions can be modified to become more effective.', 'study_time_method': 'Longitudinal', 'study_universe': 'The participants of RADAR were recruited from randomly selected schools in the center and west of the Netherlands and consist of three groups: RADAR Young, RADAR Old and RADAR G3 (the next generation). RADAR Young consists of 497 adolescents of Dutch descent who were 12 years old at the start of RADAR. RADAR also followed 190 Moroccan adolescents aged 12 to 17. This group no longer participates in RADAR. RADAR Old consists of 233 adolescents of Dutch descent, who were 15 years old at the start of RADAR. RADAR G3 consists of RADAR participants who will or have become parents of a child younger than 7 years old themselves. Parents of a step-, adopted or foster child are also invited to participate in RADAR G3.', 'title': 'Research on Adolescent Development and Relationships', 'study_contact': [{'study_contact_affiliation': 'Utrecht University', 'study_contact_mail': 'RADAR@uu.nl', 'study_contact_name': 'RADAR Team'}], 'study_contributor': [{'study_contributor_affiliation': 'Utrecht University', 'study_contributor_affiliation_identifier': 'https://ror.org/04pp8hn57', 'study_contributor_affiliation_identifier_scheme': 'ROR', 'study_contributor_affiliation_identifier_schemeuri': 'https://ror.org/', 'study_contributor_identifier_schemeuri': 'https://uu.nl/', 'study_contributor_identifier_type': 'url', 'study_contributor_name': 'RADAR management team', 'study_contributor_pid': 'https://www.uu.nl/en/research/radar/radar-team'}], 'study_data_access': [{'study_data_access_URL': 'https://doi.org/10.17026%2Fdans-zrb-v5wp', 'study_data_access_description': 'To access RADAR data, please follow the instructions in the RADAR publication protocol and the data request form. This form should contain the theoretical rationale, research questions, hypotheses, and a description of planned statistical analyses. Once the data request is approved by the principal investigators of RADAR, researchers will get access to the requested data.'}], 'study_funding': [{'study_funder': 'Dutch Research Council', 'study_funder_identifier': 'https://ror.org/04jsz6e67', 'study_funder_identifier_schemuri': 'https://ror.org/', 'study_funder_identifier_type': 'ROR', 'study_grant_number': 'GB-MAGW 480-03-005'}, {'study_funder': 'Dutch Research Council', 'study_funder_identifier': 'https://ror.org/04jsz6e67', 'study_funder_identifier_schemuri': 'https://ror.org/', 'study_funder_identifier_type': 'ROR', 'study_grant_number': 'GB-MAGW 480-08-006'}, {'study_funder': 'Stichting Achmea Slachtoffer en Samenleving', 'study_funder_identifier': 'https://ror.org/033hwwn95', 'study_funder_identifier_schemuri': 'https://ror.org/', 'study_funder_identifier_type': 'ROR', 'study_grant_number': ''}, {'study_funder': 'Dutch Research Council', 'study_funder_identifier': 'https://ror.org/04jsz6e67', 'study_funder_identifier_schemuri': 'https://ror.org/', 'study_funder_identifier_type': 'ROR', 'study_grant_number': '024.001.003'}, {'study_funder': 'European Research Council (ERC)', 'study_funder_identifier': 'https://ror.org/0472cxd90', 'study_funder_identifier_schemuri': 'https://ror.org/', 'study_funder_identifier_type': 'ROR', 'study_grant_number': 'ERC-2017-CoG - 773023 INTRANSITION'}], 'study_principal_investigators': [{'study_pi_affiliation': 'Utrecht University', 'study_pi_affiliation_identifier': 'https://ror.org/04pp8hn57', 'study_pi_affiliation_identifier_scheme': 'ROR', 'study_pi_affiliation_identifier_schemeuri': 'https://ror.org/', 'study_pi_identifier_schemeuri': 'https://orcid.org/', 'study_pi_identifier_type': 'ORCID', 'study_pi_name': 'Branje, Susan', 'study_pi_pid': '0000-0002-9999-5313'}, {'study_pi_affiliation': 'Utrecht University', 'study_pi_affiliation_identifier': 'https://ror.org/04pp8hn57', 'study_pi_affiliation_identifier_scheme': 'ROR', 'study_pi_affiliation_identifier_schemeuri': 'https://ror.org/', 'study_pi_name': 'Meeus, Wim'}], 'study_publisher': [{'study_publisher_identifier': 'https://ror.org/04pp8hn57', 'study_publisher_identifier_schemeuri': 'https://ror.org/', 'study_publisher_identifier_type': 'ROR', 'study_publisher_name': 'Utrecht University'}]}]
wave	[{'wave_alternate_title': ['2 years', 'W2', 'Second measurement', '2.5 years', 'Toddlerhood', 'G3_2-2.5y'], 'wave_cohort': 'RADAR: Third Generation', 'wave_cohort_ckan_id': 'c31321d7a985a003966c3b74efae685b', 'wave_description': "In wave 2 of the RADAR-G3 Cohort, the (now grown-up) RADAR targets and the target's siblings, and their partner filled out questionnaires about their child's (G3) temperament, developmental milestones, psychosocial adjustment, and child-rearing when that child was around 2 years old. These questionnaires were followed by a home visit at around 2.5 years old where the target/sibling and their child performed parent-child interaction tasks and the child performed social competence and self-regulation tasks.", 'wave_physical_data_product_description': 'Digital files', 'wave_start_date_collection': '2015-01-01', 'wave_title': 'G3 - T2', 'wave_universe': '24-32', 'wave_contributor': [{'wave_contributor_affiliation': 'Utrecht University', 'wave_contributor_affiliation_identifier': 'https://ror.org/04pp8hn57', 'wave_contributor_affiliation_identifier_scheme': 'ROR', 'wave_contributor_affiliation_identifier_schemeuri': 'https://ror.org/', 'wave_contributor_identifier_schemeuri': 'https://orcid.org/', 'wave_contributor_identifier_type': 'ORCID', 'wave_contributor_name': 'Geeraerts, Sanne', 'wave_contributor_pid': '0000-0001-5513-5808'}, {'wave_contributor_affiliation': 'Utrecht University', 'wave_contributor_affiliation_identifier': 'https://ror.org/04pp8hn57', 'wave_contributor_affiliation_identifier_scheme': 'ROR', 'wave_contributor_affiliation_identifier_schemeuri': 'https://ror.org/', 'wave_contributor_identifier_schemeuri': '', 'wave_contributor_identifier_type': '', 'wave_contributor_name': 'van den Hurk, Gaby', 'wave_contributor_pid': ''}, {'wave_contributor_affiliation': 'Utrecht University', 'wave_contributor_affiliation_identifier': 'https://ror.org/04pp8hn57', 'wave_contributor_affiliation_identifier_scheme': 'ROR', 'wave_contributor_affiliation_identifier_schemeuri': 'https://ror.org/', 'wave_contributor_identifier_schemeuri': '', 'wave_contributor_identifier_type': '', 'wave_contributor_name': 'van Meegen, Marije', 'wave_contributor_pid': ''}, {'wave_contributor_affiliation': 'Utrecht University', 'wave_contributor_affiliation_identifier': 'https://ror.org/04pp8hn57', 'wave_contributor_affiliation_identifier_scheme': 'ROR', 'wave_contributor_affiliation_identifier_schemeuri': 'https://ror.org/', 'wave_contributor_identifier_schemeuri': '', 'wave_contributor_identifier_type': '', 'wave_contributor_name': 'Kruidhof, Jorien', 'wave_contributor_pid': ''}, {'wave_contributor_affiliation': 'Utrecht University', 'wave_contributor_affiliation_identifier': 'https://ror.org/04pp8hn57', 'wave_contributor_affiliation_identifier_scheme': 'ROR', 'wave_contributor_affiliation_identifier_schemeuri': 'https://ror.org/', 'wave_contributor_identifier_schemeuri': 'https://uu.nl/', 'wave_contributor_identifier_type': 'url', 'wave_contributor_name': 'RADAR management team', 'wave_contributor_pid': 'https://www.uu.nl/en/research/radar/radar-team'}], 'wave_creator': [{'wave_creator_affiliation': 'Utrecht University', 'wave_creator_affiliation_identifier': 'https://ror.org/04pp8hn57', 'wave_creator_affiliation_identifier_scheme': 'ROR', 'wave_creator_affiliation_identifier_schemeuri': 'https://ror.org/', 'wave_creator_identifier_schemeuri': 'https://orcid.org/', 'wave_creator_name': 'Branje, Susan', 'wave_creator_pid': '0000-0002-9999-5313'}, {'wave_creator_affiliation': 'Utrecht University', 'wave_creator_affiliation_identifier': 'https://ror.org/04pp8hn57', 'wave_creator_affiliation_identifier_scheme': 'ROR', 'wave_creator_affiliation_identifier_schemeuri': 'https://ror.org/', 'wave_creator_name': 'Meeus, Wim'}], 'wave_funding': [{'wave_funder_identifier_schemuri': 'https://ror.org/', 'wave_funder_identifier_type': 'ROR', 'wave_grant_number': '024.001.003'}], 'wave_publisher': [{'wave_publisher_identifier': 'https://ror.org/04pp8hn57', 'wave_publisher_identifier_type': 'ROR', 'wave_publisher_name': 'Utrecht University'}], 'wave_subject_codes': [{'wave_subject_code': 'PC', 'wave_subject_code_translated': 'Parent (biological and non-biological, incl. caregivers) on Child'}]}, {'wave_alternate_title': ['4.5 years', 'W3', 'Third measurement', '5 years', 'School assessment', 'Preschool', 'G3_4.5-5y'], 'wave_cohort': 'RADAR: Third Generation', 'wave_cohort_ckan_id': 'c31321d7a985a003966c3b74efae685b', 'wave_description': "In wave 3 of the RADAR-G3 Cohort, the (now grown-up) RADAR targets and the target's siblings, and their partner filled out questionnaires about their child's (G3) temperament, developmental milestones, psychosocial adjustment, and child-rearing when that child was around 4.5 years old. These were followed by a questionnaire about the child's psychosocial adjustment administered to the child's teacher at around 5 years old.", 'wave_physical_data_product_description': 'Digital files', 'wave_start_date_collection': '2018-01-01', 'wave_title': 'G3 - T3', 'wave_universe': '54-66', 'wave_contributor': [{'wave_contributor_affiliation': 'Utrecht University', 'wave_contributor_affiliation_identifier': 'https://ror.org/04pp8hn57', 'wave_contributor_affiliation_identifier_scheme': 'ROR', 'wave_contributor_affiliation_identifier_schemeuri': 'https://ror.org/', 'wave_contributor_identifier_schemeuri': 'https://orcid.org/', 'wave_contributor_identifier_type': 'ORCID', 'wave_contributor_name': 'Geeraerts, Sanne', 'wave_contributor_pid': '0000-0001-5513-5808'}, {'wave_contributor_affiliation': 'Utrecht University', 'wave_contributor_affiliation_identifier': 'https://ror.org/04pp8hn57', 'wave_contributor_affiliation_identifier_scheme': 'ROR', 'wave_contributor_affiliation_identifier_schemeuri': 'https://ror.org/', 'wave_contributor_identifier_schemeuri': '', 'wave_contributor_identifier_type': '', 'wave_contributor_name': 'van den Hurk, Gaby', 'wave_contributor_pid': ''}, {'wave_contributor_affiliation': 'Utrecht University', 'wave_contributor_affiliation_identifier': 'https://ror.org/04pp8hn57', 'wave_contributor_affiliation_identifier_scheme': 'ROR', 'wave_contributor_affiliation_identifier_schemeuri': 'https://ror.org/', 'wave_contributor_identifier_schemeuri': '', 'wave_contributor_identifier_type': '', 'wave_contributor_name': 'van Meegen, Marije', 'wave_contributor_pid': ''}, {'wave_contributor_affiliation': 'Utrecht University', 'wave_contributor_affiliation_identifier': 'https://ror.org/04pp8hn57', 'wave_contributor_affiliation_identifier_scheme': 'ROR', 'wave_contributor_affiliation_identifier_schemeuri': 'https://ror.org/', 'wave_contributor_identifier_schemeuri': '', 'wave_contributor_identifier_type': '', 'wave_contributor_name': 'Kruidhof, Jorien', 'wave_contributor_pid': ''}, {'wave_contributor_affiliation': 'Utrecht University', 'wave_contributor_affiliation_identifier': 'https://ror.org/04pp8hn57', 'wave_contributor_affiliation_identifier_scheme': 'ROR', 'wave_contributor_affiliation_identifier_schemeuri': 'https://ror.org/', 'wave_contributor_identifier_schemeuri': 'https://uu.nl/', 'wave_contributor_identifier_type': 'url', 'wave_contributor_name': 'RADAR management team', 'wave_contributor_pid': 'https://www.uu.nl/en/research/radar/radar-team'}], 'wave_creator': [{'wave_creator_affiliation': 'Utrecht University', 'wave_creator_affiliation_identifier': 'https://ror.org/04pp8hn57', 'wave_creator_affiliation_identifier_scheme': 'ROR', 'wave_creator_affiliation_identifier_schemeuri': 'https://ror.org/', 'wave_creator_identifier_schemeuri': 'https://orcid.org/', 'wave_creator_name': 'Branje, Susan', 'wave_creator_pid': '0000-0002-9999-5313'}, {'wave_creator_affiliation': 'Utrecht University', 'wave_creator_affiliation_identifier': 'https://ror.org/04pp8hn57', 'wave_creator_affiliation_identifier_scheme': 'ROR', 'wave_creator_affiliation_identifier_schemeuri': 'https://ror.org/', 'wave_creator_name': 'Meeus, Wim'}], 'wave_funding': [{'wave_funder_identifier_schemuri': 'https://ror.org/', 'wave_funder_identifier_type': 'ROR', 'wave_grant_number': '024.001.003'}], 'wave_publisher': [{'wave_publisher_identifier': 'https://ror.org/04pp8hn57', 'wave_publisher_identifier_type': 'ROR', 'wave_publisher_name': 'Utrecht University'}], 'wave_subject_codes': [{'wave_subject_code': 'PC', 'wave_subject_code_translated': 'Parent (biological and non-biological, incl. caregivers) on Child'}]}]
resources	[]
tags	[]
groups	[]
relationships_as_subject	[]
relationships_as_object	[]
tracking_summary	{'total': 0, 'recent': 0}