Eligibility: Open to adult twins of any zygosity as well as parents of twins aged 1-17 years. Participants must be members of Twins Research Australia. 

Twins across Australia are invited to participate in an ongoing study to investigate the impact of the COVID-19 pandemic on Australians and their families.

Called TRACKERR, the Twins Research Australia COVID-19 Knowledge, Experience, Reaction and Resilience Study is investigating the pandemic’s short, medium and long-term impacts on Australian families. The study is led by Twins Research Australia based at the University of Melbourne.

The study involves a series of online surveys, the first of which was launched in April 2020 with further surveys being released over coming months. Participants can enter the study at any time regardless if they have completed earlier surveys. See below for the study phases and findings released to date.

The study is seeking to better understand both genetic and environmental factors, and how they combine, to affect families’ health and experiences of the pandemic.

The study’s ultimate aim is to contribute to reducing the impact of the pandemic on all Australians.

What is involved?

If you agree to participate, you will be asked to complete a series of online surveys at different time points throughout the pandemic. Each survey will take approximately 20-40 minutes to complete and asks you questions about how the pandemic is affecting you and your family. You can join the study at any point and participate in as many or as few surveys as you are willing/able to complete. 

At all times the research results will not identify the individuals or families involved. Data linkage is confidential and is achieved by a de-identified code number linked to our research results.

Who is eligible?

If you are a twin or parent of twins interested in joining TRA's TRACKERR study, please note:

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

  1. If you are already a TRA member, please keep an eye on your inbox. You'll receive an invitation when the next study recruitment round is released. Please ensure you have updated your email with us so that you receive your invitation. Update your contact details 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.

All adult twin pairs (aged 18 years and above) or parents of junior twins (aged 1-17 years) with access to complete an online questionnaire are eligible to participate.

Phases of recruitment and study findings:

Phase 1 surveys: April – July 2020

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

Phase 2 surveys: August – September 2020

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

Phase 3 surveys: to be confirmed

Twins Research Australia

Address: 3/207 Bouverie St
Carlton, Vic 3010

Freecall: 1800 037 021

Email: info@twins.org.au

ABN: 84 002 705 224

Twins Research Australia is a national resource supported by a Centre of Research Excellence Grant from the National Health and Medical Research Council and housed within the University of Melbourne.

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