This site uses cookies

Some of these cookies are essential, while others help us to improve your experience by providing insights into how the site is being used.

For more detailed information please check our Cookie notice.

Necessary cookies

Necessary cookies enable core functionality. This website cannot function properly without these cookies.

Cookies that measure website use

If you provide permission, we will use Google Analytics to measure how you use the website so we can improve it based on our understanding of user needs. Google Analytics sets cookies that store anonymised information about how you got to the site, the pages you visit, how long you spend on each page and what you click on while you're visiting the site.

 

Variable

UK Data Service variable record for:

Study of Twins in the National Child Development Study and the 1970 British Cohort Study, 2008

Variable Details

VariablePEASZ
LabelPeas in a pod measure
Responses
0 Fraternal 147
1 Identical 51
-2 No response 4
-1 Not applicable 0
DisclaimerPlease note that these frequencies are not weighted.
LocationStudy of Twins in the National Child Development Study and the 1970 British Cohort Study, 2008
Interviewer InstructionsPEASZ - Based on a series of five standardised questions (questions 4, 5, 7, 8 and 9 in the questionnaire) including the famous “peas in a pod” question. This measure is considered to be the most reliable of the three. It is used by studies focused on twins such as the St Thomas’s Twin Research Unit Register, and should be used as the main measure where indicators differ.
UniverseNCDS and BCS70 cohort members identified as twins.;National
SamplingNo sampling (total universe)
Study TypeLongitudinal/panel/cohort
UKRI logo

Funded by UKRI through the ESRC with contributions from our partners.

© 2025 UK Data Service
We are supported by the University of Essex, University of Manchester, Jisc, UCL and University of Edinburgh. We are funded by UKRI through the Economic and Social Research Council.