Back
Glossary

Twin Study: IB Psychology Definition

Claire Neeson

Written by: Claire Neeson

Reviewed by: Raj Bonsor

Published

Last updated

Contents

  1. 1. What is a twin study?
  2. 2. IB Psychology Revision Resources to Ace Your Exams

What is a twin study?

In IB Psychology, a twin study is a research method used in research to explore the role of genetics and environment in shaping human behaviour and traits. By comparing the similarities and differences between monozygotic (identical) twins, who share 100% of their genetic material, and dizygotic (fraternal) twins, who share about 50%, researchers can assess the relative influence of heredity versus environmental factors.

This method provides valuable insights into the nature versus nurture debate, helping to determine the extent to which genetic factors contribute to psychological characteristics and conditions.

IB Psychology Revision Resources to Ace Your Exams

If you’re looking for revision resources for IB Psychology, the experts at Save My Exams have meticulously combed through the IB Psychology specification to ensure that the revision notes we provide are perfectly aligned with the exam board’s requirements.

Explore IB Psychology Revision Resources

Sign up for articles sent directly to your inbox

Receive news, articles and guides directly from our team of experts.

Share this article

Author
Reviewer
Claire Neeson

Author: Claire Neeson

Expertise: Psychology Content Creator

Claire has been teaching for 34 years, in the UK and overseas. She has taught GCSE, A-level and IB Psychology which has been a lot of fun and extremely exhausting! Claire is now a freelance Psychology teacher and content creator, producing textbooks, revision notes and (hopefully) exciting and interactive teaching materials for use in the classroom and for exam prep. Her passion (apart from Psychology of course) is roller skating and when she is not working (or watching 'Coronation Street') she can be found busting some impressive moves on her local roller rink.

Raj Bonsor

Author: Raj Bonsor

Expertise: Psychology & Sociology Content Creator

Raj joined Save My Exams in 2024 as a Senior Content Creator for Psychology & Sociology. Prior to this, she spent fifteen years in the classroom, teaching hundreds of GCSE and A Level students. She has experience as Subject Leader for Psychology and Sociology, and her favourite topics to teach are research methods (especially inferential statistics!) and attachment. She has also successfully taught a number of Level 3 subjects, including criminology, health & social care, and citizenship.

The examiner written revision resources that improve your grades 2x.

Join now