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TEDS E-Risk Study

The ground-breaking twin study known as the ‘Twins Early Development Study’ (TEDS) is back! You are part of a special TEDS project called the ‘Environmental Risk Study’ (E-Risk). Complete the survey and receive a £10 voucher.

What is the TEDS E-Risk study?

You are part of a study that includes over 2,000 twins in the UK, born in 1994 and 1995. We aim to build knowledge of how environmental and genetic factors contribute to the development of behaviours, wellbeing and health from childhood. Since we last saw you the information you provided has pushed forward our understanding of issues from loneliness to ADHD, to how our genes are linked to asthma. Your participation now and in the future will make the study even more valuable!

Who is carrying out and funding the study?

This survey is being carried out on behalf of E-Risk by the National Centre for Social Research (NatCen). For more information about NatCen please visit: The study is funded by the Medical Research Council.

What will taking part involve?

Taking part is your choice. You have been invited to take part in a short online questionnaire lasting around 15 minutes. We will ask you questions on a range of topics, from views on social media and how you spend your time, to your views on society and your future.

You will receive a shopping voucher as a thank you for taking part. You can spend this at a range of high street shops including Argos, Boots and TK Maxx.

What will happen to my data?

The survey is strictly confidential and fully complies with data protection regulation. For more information please visit:

What if I can't access the online survey?

No problem. If you can’t complete the survey, a member of the TEDS Team will give you a call to complete the survey over the phone. If you wish to provide us with a telephone number, please get in touch using the details below.

Where can I find out more?

If you have any questions about the survey, please contact the research team at NatCen at or Freephone 0800 652 4570. If you would like to find out more about the E-Risk Study in TEDS, please visit