University of British Columbia Twin Project (UBC Twin Project)
The UBC Twin Project is a long-term behavioural genetics study aimed at understanding the genetic and environmental influences on personality and related disorders. The study includes approximately 2,000 pairs of reared-together twins from across Canada, with initial recruitment focused on Vancouver and southwestern British Columbia. Recruitment began in 1991 through widespread media outreach, including newspaper advertisements, radio and television appearances, and community talks. The cohort includes adult twins aged 18 to 84 years from diverse socioeconomic backgrounds. Follow-up assessments have been conducted intermittently over the years, aligned with evolving research questions, rather than on a fixed schedule.
Study design
Cohort - twin, Cohort
Number of participants at first data collection
2,000 (twin pairs, as of 2013)
Recruitment is ongoing
Age at first data collection
18 - 84 years (twin pairs)
Participant year of birth
Varied (twin pairs)
Participant sex
All
Representative sample at baseline?
No
Sample features
Country
Year of first data collection
1991
Primary Institutions
University of British Columbia (UBC)
Profile paper DOI
Funders
No funding information available
Ongoing?
Yes
Data types collected
- Self-report questionnaire – paper or computer assisted
- None
- None
- None
Engagement
Keywords
Consortia and dataset groups
