Study Instruments🔗

This page lists all instruments included in the current release, organized by domain. Each instrument links to a separate README page containing instrument documentation, including, where applicable, details of implementation and data collection, quality control procedures, data and responsible use warnings, scoring procedures, and references. Study protocols are also available on the HBCD Study site.

Behavior, Biology, & Environment🔗

The following domains provide most of the tabulated data and ALL concatenated data included in the release.

For the small number of concatenated datasets, the folder name is provided in the summary tables below in place of table names. See Data Structure Overview for an overview of release data types.

Administrative  /   Demographics🔗
Domain Instrument Construct Table / Folder Name
ADMINISTRATIVE Study Navigator Contact Form Recruitment/Retention concatenated/study_navigator/
DEMOGRAPHICS Basic Demographics Derived Demographics sed_basic_demographics
Visit Level Data Participant visit information par_visit_data
Behavior & Caregiver-Child Interaction🔗
Instrument Construct Table Name
CHAOS Family Organization mh_cg_chaos
ecPROMIS Caregiver-Child Caregiver-Child Interactions mh_cg_pms__cc__inf (<1 year) / mh_cg_pms__cc__1to5 (1-5 years)
ecPROMIS Peer Peer Relationships mh_cg_pms__peer
ecPROMIS Self-Regulation Self-Regulation and Flexibility mh_cg_pms__selfreg
ERICA Emotional Regulation mh_cg_erica
FAD (GF6+) Global Functioning of Family Unit mh_cg_fad
IBQ-R (VSF)+BI Surgency/Extraversion,
Negative Affectivity,
Effortful Control,
Behavioral Inhibition 		mh_cg_ibqr
ECBQ (VSF)+BI mh_cg_ecbq
MAPS-TL Irritability mh_cg_mapdb__inf (Infant) / mh_cg_mapstl__tod (Toddler)
Biospecimen & Omics🔗
Instrument Construct Table / Folder Name
Illumina GDA GWAS GWAS, EWAS, Transcriptome concatenated/genetics/
Maternal Nails Drug, Environmental Exposure bio_bm_biosample_nails_results / bio_bm_biosample_nails_type
Maternal Urine Drug Panel, Toxins bio_bm_biosample_urine_results
Olink Explore Maternal Inflammation concatenated/proteins/
Neurocognition & Language🔗
Instrument Construct Table Name
Bayley-4 Scales Child Development (Cognitive, Language, and Motor) ncl_ch_bayley
MacArthur-Bates CDI-I Language Development (Words & Gestures) ncl_ch_cdiwgen (English) / ncl_ch_cdiwges (Spanish)
MLDS Multilingual Exposure ncl_ch_mlds
SPM-2 Sensory Processing/Integration ncl_cg_spm2__inf (Infant) / ncl_cg_spm2__tod (Toddler)
Vineland Adaptive Behavior ncl_cg_vabs
Physical Health🔗
Instrument Construct Table Name
Anthropometrics Growth ph_ch_anthro
Breast Feeding History Nutrition ph_cg_phx__bfh
Brief Infant Sleep Questionnaire Sleep ph_cg_bisq
ecPROMIS Physical Activity/Greenspace Physical Activity ph_cg_pms__pags
ecPROMIS Sleep Sleep ph_cg_pms__sleep
Medical History Medical History ph_cg_ecls__medhist
Nutrition Questionnaire Nutrition ph_cg_inq
ScreenQ Media Use ph_cg_screenq
Vision Screener Vision ph_ch_vs
Pregnancy & Exposure, Including Substance Use🔗
Instrument Construct Table Name
[ Pregnancy & Infant Health ]
Health V1-Health History Pre-pregnancy and pregnancy health pex_bm_health_preg__healthhx
Health V1-Exp & Vaccines Vaccines in pregnancy pex_bm_health_preg__exp__vacc
Health V1-Chronic Conditions Chronic conditions/STIs in pregnancy pex_bm_health_preg__chroncond
Health V1-Illness Illness in pregnancy pex_bm_health_preg__illness
Health V1-ER Admissions ER visit or hospitalization in pregnancy pex_bm_health_preg__erhosp
Health V1-Medications Medications in pregnancy pex_bm_health_preg__meds
Health V2-Pregnancy Health updates up to delivery pex_bm_healthv2_preg
Health V2-Infancy Delivery and birth outcomes pex_bm_healthv2_inf
[ Mental Health ]
FAM MH Personal and Family Mental Health pex_bm_psych
APA 1/2 Mental Health pex_bm_apa
DSM5 Acute Stress or PTSD PTSD/Acute Stress Symptom Severity pex_bm_str__ptsd
EPDS Postnatal Depression pex_bm_epds
[ Substance Use ]
ASSIST V1/2/3/4 Substance Use Pre-, During, and Post-Pregnancy pex_bm_assistv{1|2|3|4}
Substance Use Patterns Substance Use in Pregnancy pex_bm_subst
TLFB Substance Use Before and During Pregnancy pex_ch_tlfb
Social & Environmental Determinants🔗
Instrument Construct Table Name
ACES Adverse Childhood Experiences sed_cg_ace / sed_cg_pedaces (Pediatric ACES)
Baby's First Years (BFY) Benefits/Services/Economic Stress sed_bm_bfy
Composite Abuse Scale (CABr-SF) Intimate Partner Violence sed_cg_cabr_sf
Current Employment Current Employment sed_cg_employ
Demographics Adult Demographics sed_bm_demo
Child Demographics Child Demographics sed_bm_demo_child
eHITS Intimate Partner Violence sed_bm_ehits
Food Insecurity Food insecurity sed_cg_foodins
Geocoded Linkage Neighborhood Measures concatenated/geocoding/
HOME-21 Child’s Home Environment sed_cg_home_it
Household Chemical Exposures Household Chemical Exposures sed_cg_hce
Lead Exposures Lead Exposures sed_cg_leadexp
Neighborhood Safety Neighborhood Safety sed_bm_nbhsaf
PACEs Protective Factors sed_bm_paces (Current) / sed_cg_paces (Retrospective <18)
PROMIS Perceived Stress/Social Support sed_bm_strsup
Second Hand Smoke Second Hand Smoke Exposure sed_cg_shs
Transitions in Care Screener Recruitment/Retention sed_cg_tic_screener
Unfair Treatment Experiences of Unfair Treatment sed_bm_phx__discr
Vancouver Index (VIA) Acculturation sed_cg_via

Brain Activity & Biosensors🔗

The following domains are the source of ALL file-based raw BIDS and processed derivatives in the release.

Associated tabulated data include tabulated pipeline derivatives (see details), participant questionnaires, and session/acquisition forms filled out by technicians. See Data Structure Overview for an overview of release data types.

EEG / Tabular EEG🔗

The EEG datasets include task data from Auditory Mismatch Negativity (MMN), Faces (FACE), Visual Evoked Potential (VEP), and Video Resting State (RS). File-based EEG data include raw BIDS and HBCD-MADE pipeline derivatives; see Release Data for details. Tabular EEG data includes tabulated pipeline derivatives, acquisition forms, and quality-control metrics:

Table Construct Table Name
HBCD-MADE tabulated derivatives Processing Reports eeg_made_task-{FACE|MMN|RS|VEP}_acq-eeg_preprocessingReport
Summary Statistics eeg_made_task-{FACE|MMN|VEP}FACE_ERPSummaryStats
EEG Acquisition Checklists Acquisition Prep eeg_ch_chkl, eeg_ch_chkl_1, eeg_ch_chkl_2
Quality Control Metrics Quality Control eeg_qc_task-{FACE|MMN|RS|VEP}
Imaging / Tabular Imaging🔗

Imaging includes Magnetic Resonance Imaging (structural, functional, quantitative, and diffusion MRI) as well as MR Spectroscopy (MRS) datasets. File-based data include raw BIDS and pipeline derivatives; see Release Data for details. Tabular Imaging includes tabulated pipeline derivatives (), questionnaire/form data, and quality-control metrics:

Table Construct Table Name
BIBSNet Brain ROI Volumes img_bibsnet_space-{T1w|T2w}_desc-aseg_volumes
BrainSwipes Manual QC img_brainswipes_xcpd_hash-0f306a2f+0ef9c88a_{T2w|bold}
img_brainswipes_xcpd_hash-2afa9081+0ef9c88a_{T1w|bold}
MRIQC Raw BIDS QC Metrics img_mriqc_{T1w|T2w|bold}
MRI Summary Forms Pre/Post-Scan Checklists mri_ra_chkl_scan / mri_ra_chkl_data
OSPREY-BIDS Metabolites img_osprey_{HERCULES|unedited}_* → View full file list & details
Pre-Scan Questionnaire Infant Sleep Environment mri_ra_prep
QSIPrep QSIPrep QC Metrics img_qsiprep_space-ACPC_desc-image_qc
XCP-D Morph/fMRI metrics img_xcpd_hash-{HASH}_space-fsLR_seg-{PARC}_stat-mean_desc-{METRIC}_morph
img_xcpd_hash-{HASH}_space-fsLR_seg-{PARC}_stat-{alff|coverage|reho}_bold
  → View full file list & details
Novel Technologies & Wearable Sensors🔗

Wearable sensor data includes raw BIDS and processed HBCD-Motion pipeline derivatives - see Release Data for details. Tabulated data includes questionnaires and sensor checklists:

Instrument Construct Table Name
Infant Sensor Questionnaire 1/2/3 Motor Development, Regulation (Sleep/Wake) (Day 1/2/3) nt_ch_sens__qtn_{1|2|3}
Biosensor Receipt / Setup Administrative nt_ch_sens_rcpt / nt_ch_sens_setup