< OToPS < ABCD

OToPS/ABCD/ABCD Substudies

Overview of Measures

ABCD Substudy - Measures by Wave
Measure Category Subcategory Source Baseline 1-Year Follow-up 2-Year Follow-up 3-Year Follow-up 4-Year Follow-up 5-Year Follow-up 6-Year Follow-up Mid-Year Follow-up
COVID-19 Fitbit Physical Activity (Daily) COVID-19 Actigraphy Youth
COVID-19 Fitbit Physical Activity (Weekly) COVID-19 Actigraphy Youth
COVID-19 Fitbit Post-Assessment Survey COVID-19 Actigraphy Youth
COVID-19 Fitbit Sleep (Daily) COVID-19 Actigraphy Youth
COVID-19 Fitbit Sleep (Weekly) COVID-19 Actigraphy Youth
COVID-19 Questionnaire COVID-19 COVID Youth
Endocannabinoid Substudy Endocannabinoid SU Consequence Youth
Hurricane Irma Experiences Hurricane Irma Questionnaire Youth
Reported Delinquency[1] Social Development Delinquency Youth No Yes Yes Yes No No No No
Difficulties in Emotion Regulation Social Development Emotion Youth
Firearms (YRBSS) Social Development Firearm Storage Youth
Alabama Parenting Questionnaire Social Development Parenting Youth
Peer Behavior Social Development Peers Youth
Personality Disposition Social Development Temperament/Personality Youth
Victimization Social Development Victimization Youth
COVID-19 Questionnaire COVID-19 COVID Parent
Hurricane Irma Experiences Hurricane Irma Questionnaire Parent
Visit Type Social Development Administrative Parent
Perception of Neighborhood Scale Social Development Community Parent
Reported Delinquency Social Development Delinquency Parent
Difficulties in Emotion Regulation Social Development Emotion Parent
Firearms (BRFSS) Social Development Firearm Storage Parent
Alabama Parenting Questionnaire Social Development Parenting Parent
Personality Disposition Social Development Temperament/Personality Parent
Victimization Social Development Victimization Parent
ABCD Substudy - Linked Data
Measure Category Subcategory Source Data Collection Information Associated Date
Administrative Information COVID-19 Geocoded Data Youth Percentage of time spent as address 1-5.
CDC Policy Surveilance COVID-19 Geocoded Data CDC Policies and dates of policy changes for general gathering bans, stay at home orders, public masking orders, bar operation, and restaurant operation due to COVID.
Johns Hopkins University COVID-19 Prevalence COVID-19 Geocoded Data JHU County-level data collected 0-6 days before questionnaire dissemination date:
  • Cumulative case count
  • Population-normed cumulative case count (per 100k)
  • New case count
  • Population-normed new case count (per 100k)
  • Population-normed new case count (per 100k; 7-day rolling mean)
  • Cumulative death count
  • Population-normed cumulative death count (per 100k)
  • New death count
  • Population-normed new death count (per 100k)
  • Population-normed new death count (per 100k; 7-day rolling mean)
COVID-19 questionnaire dissemination date
SafeGraph Social Distancing Metrics COVID-19 Geocoded Data SafeGraph SafeGraph Device data collected by census block 0-6 days before questionnaire dissemination date:
  • Median distance traveled from home (meters)
  • Median distance traveled from home 1 year prior (meters)
  • Dwell time (minutes)
  • Dwell time 1 year prior (minutes)
  • Completely at home ratio
  • Completely at home ratio 1 year prior
  • Exhibiting full-time work behavior
  • Exhibiting full-time work behavior 1 year prior
  • Exhibiting part-time work behavior
  • Exhibiting part-time work behavior 1 year prior
COVID-19 questionnaire dissemination data
US Bureau of Labor Statistics (BLS) and Census Data COVID-19 Geocoded Data BLS/Census Monthly unemployment rate (not seasonally adjusted), monthly unemployment rate 1 year prior (not seasonally adjusted)

Coding Information

ABCD Substudy - Coding Information
Measure Category Subcategory Source Table Name Table Name (NDA 4.0)
COVID-19 Fitbit Physical Activity (Daily) COVID-19 Actigraphy Youth cvd_y_fitb_act_d N/A
COVID-19 Fitbit Physical Activity (Weekly) COVID-19 Actigraphy Youth cvd_y_fitb_act_w N/A
COVID-19 Fitbit Post-Assessment Survey COVID-19 Actigraphy Youth cvd_y_fitb_qtn covid19_fitbit_survey01
COVID-19 Fitbit Sleep (Daily) COVID-19 Actigraphy Youth cvd_y_fitb_slp_d N/A
COVID-19 Fitbit Sleep (Weekly) COVID-19 Actigraphy Youth cvd_y_fitb_slp_w N/A
COVID-19 Questionnaire COVID-19 COVID Youth cvd_y_qtn yabcdcovid19questionnaire01
Endocannabinoid Substudy Endocannabinoid SU Consequence Youth ecb_y_ecb N/A
Hurricane Irma Experiences Hurricane Irma Questionnaire Youth irma_y_qtn abcd_isc01
Reported Delinquency[1] Social Development Delinquency Youth sd_y_rd abcd_socdev_child_rde01; soc_dev_fu_rep_delinq01
Difficulties in Emotion Regulation Social Development Emotion Youth sd_y_ders abcd_socdev_child_emr01; soc_dev_fu_diff_emo_reg01
Firearms (YRBSS) Social Development Firearm Storage Youth sd_y_fa abcd_socdev_child_fa01; soc_dev_fu_firearms01
Alabama Parenting Questionnaire Social Development Parenting Youth sd_y_apq abcd_socdev_child_alabam01; soc_dev_fu_alabama01
Peer Behavior Social Development Peers Youth sd_y_pb abcd_socdev_child_pb01; soc_dev_fu_peer_behav01
Personality Disposition Social Development Temperament/Personality Youth sd_y_pd abcd_socdev_child_pdis01; soc_dev_fu_personality01;
Victimization Social Development Victimization Youth sd_y_vict abcd_socdev_child_vic01; soc_dev_fu_victimize01
COVID-19 Questionnaire COVID-19 COVID Parent cvd_p_qtn pabcdcovid19questionnaire01
Hurricane Irma Experiences Hurricane Irma Questionnaire Parent irma_p_qtn abcd_ip01
Visit Type Social Development Administrative Parent sd_p_vt abcd_socdev_vt01; soc_dev_fu_visit_type01;
Perception of Neighborhood Scale Social Development Community Parent sd_p_nbh soc_dev_fu_neighbor_p01; abcd_socdev_p_nbh01
Reported Delinquency Social Development Delinquency Parent sd_p_rd soc_dev_fu_rep_delinq_p01; abcd_socdev_p_rde01;
Difficulties in Emotion Regulation Social Development Emotion Parent sd_p_ders abcd_socdev_p_emr01; soc_dev_fu_diff_emo_reg_p01
Firearms (BRFSS) Social Development Firearm Storage Parent sd_p_fa soc_dev_fu_firearms_p01; abcd_socdev_p_fa01
Alabama Parenting Questionnaire Social Development Parenting Parent sd_p_apq soc_dev_fu_alabama_p01; abcd_socdev_p_alabama01
Personality Disposition Social Development Temperament/Personality Parent sd_p_pd abcd_socdev_p_pdis01; soc_dev_fu_personality_p01
Victimization Social Development Victimization Parent sd_p_vict soc_dev_fu_victimize_p01; abcd_socdev_p_vic01
ABCD Substudy - Linked Data Coding Information
Measure Category Subcategory Source Table Name Table Name (NDA 4.0)
Administrative Information COVID-19 Geocoded Data Youth cvd_l_geo_adm N/A
CDC Policy Surveilance COVID-19 Geocoded Data CDC cvd_l_geo_policy N/A
Johns Hopkins University COVID-19 Prevalence COVID-19 Geocoded Data JHU cvd_l_geo_jhu N/A
SafeGraph Social Distancing Metrics COVID-19 Geocoded Data SafeGraph cvd_l_geo_sg N/A
US Bureau of Labor Statistics (BLS) and Census Data COVID-19 Geocoded Data BLS/Census cvd_l_geo_bls N/A
  1. 1 2 Elliott DS, Ageton SS, Huizinga D, Knowles BA, Canter RJ. The prevalence and incidence of delinquent behavior: 1976–1980 (National Youth Survey Report No. 26) Behavioral Research Institute; Boulder, CO: 1983.
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