We thank our amazing researchers and TRA members who make our COVID-19 research possible. Called TRACKERR, the Twins Research Australia COVID-19 Knowledge, Experience, Reaction and Resilience project is a series of ongoing studies that are investigating the pandemic’s short, medium and long-term impacts on Australian families.

This study involves a series of online surveys, the first of which was launched in April 2020 with further surveys expected every 6-12 months.

Find more about findings from our research below.

Study phases

Phase 1 surveys: April – July 2020

• Twins and higher order multiples (HOMs) 18+ years of age survey (now closed)
• Parents of junior twins and HOMs survey (now closed)

Phase 2 surveys: August – November 2020

• Twins 18+ years of age survey (now closed)
• Twins under the age of 18 survey (delayed)

Phase 3 surveys: Now closed

• Twins 18+ years of age who previously participated in Phase 1 or Phase 2

Join our COVID-19 studies

• Twin adult survey 3 (now closed)
• Parents of junior twins stay tuned for the release of phase 2. We’ll keep our members updated via email and via Facebook on the release date and who is eligible.

You must be registered as a member of Twins Research Australia to participate in the study.

1. If you are already a TRA member, ensure your contact details are up to date here or email us at This email address is being protected from spambots. You need JavaScript enabled to view it. 

2. If you are NOT a TRA member, please register online here. This page includes links to adult registration and junior registration (twins under the age of 18 must be registered by their parent or guardian). Please note: If you are already receiving communication from Twins Research Australia, you are already a member and there is no need to re-register.

Preliminary survey findings

• Wave 1 Twin/HOMs Adult Survey
• Wave 1 Parents of Junior Twins/HOMs Survey

Media stories

• Close relationships key to resilience and optimism during isolation (Wave 1 adult twin findings, July 2020)
• Are twins more at risk of coronavirus? (May 2020)
• Twin sisters sign up for virus study (April 2020)
• Launch of Twins Plus TRACKERR COVID-19 study (April 2020)
• Twins Research Australia: Statement on Coronavirus (March 2020)

COVID-19 resources

• Australian Government
• Victorian Government
• Mental health
  • Beyond Blue
  • Lifeline
  • ReachOut