Wisconsin Twin Research
The Wisconsin Twin Project sample is based on birth-record-based cohorts of twins born in the state of Wisconsin during the years 1989-2004. After nearly 30 years, the research program encompasses a series of longitudinal studies that span infancy to early adulthood. Nearly 12,000 twin pairs are included in the project's studies, and mothers, fathers, and non-twin siblings have also participated in the research.
Study design
Cohort - birth, Cohort - twin
Number of participants at first data collection
1,566 (participants)
Age at first data collection
Varied (participants)
Participant year of birth
1989 - 2004 (participants)
Participant sex
All
Representative sample at baseline?
All twins born in the state of Wisconsin, United States.
Sample features
Country
Year of first data collection
1989
Primary Institutions
Intellectual and Developmental Disabilities Research Center
University of Wisconsin-Madison
Profile paper DOI
Funders
Dean Foundation
MacArthur Foundation
March of Dimes
National Alliance for Autism Research
National Institute of Mental Health (NIMH)
Ongoing?
Yes
Data types collected
- Computer, paper or task testing (e.g. cognitive testing, theory of mind doll task, attention computer tasks)
- Interview – face-to-face
- Interview – phone
- Physical or biological assessment (e.g. blood, saliva, gait, grip strength, anthropometry)
- Self-report questionnaire – online
- Self-report questionnaire – paper or computer assisted
- Ethnography or participant observation
- Functional magnetic resonance imaging (fMRI)
- Healthcare data
- Medical birth registry
Engagement
Keywords
