Boston University Twin Project II (BUTP II)
The BUTP II is the second phase of two projects that study early child temperament and related behaviors. This phase has a broader focus and involves a new preschool sample longitudinally assessed at ages 3, 4 and 5 years. Of the 310 pairs of twins who participated in the age 3 laboratory assessments, 286 pairs were assessed again at age 4 and 274 pairs at age 5. All twins within a pair were the same sex and the sample was predominantly Caucasian.
Study design
Cohort - birth, Cohort - twin
Number of participants at first data collection
620 (participants)
Age at first data collection
3 years (participants)
Participant year of birth
2009 (participants)
Participant sex
All
Representative sample at baseline?
The Massachusetts population in 2012.
Sample features
Country
Year of first data collection
2012
Primary Institutions
Boston University (BU)
Profile paper DOI
Funders
National Institute of Mental Health (NIMH)
National Institutes of Health (NIH)
Ongoing?
Yes
Data types collected
- Interview – face-to-face
- Physical or biological assessment (e.g. blood, saliva, gait, grip strength, anthropometry)
- Self-report questionnaire – paper or computer assisted
- Wearable devices
- Ethnography or participant observation
- None
- None
Engagement
Keywords
Consortia and dataset groups
