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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

VariableSELFREPORTEDZ
LabelSelf-reported zygosity
Responses
0 Fraternal 194
1 Identical 50
-2 No response 0
-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 InstructionsSELFREPORTEDZ - Based on question 2 in the questionnaire, which asked directly whether the twins were identical or not.
UniverseNCDS and BCS70 cohort members identified as twins.;National
SamplingNo sampling (total universe)
Study TypeLongitudinal/panel/cohort
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