PD2

Question

Name
PD2
Question Text
  1. In your opinion are and identical twins or fraternal tw ins?
Representation Type
Code List
Selection Style
SelectOne
Measurement Unit
numeric

Usage

Related Variables

PD2 - D2 IDENTICAL OR FRATERNAL-PQ

Dataset
parent1

Summary Statistics for 'PD2'

Value Valid Label Frequency % of Valid % of All
. Missing missing 3,232
15.58%
1 Valid definitely identical 357
25.96%
1.72%
2 Valid probably identical 68
4.95%
0.33%
3 Valid definitely fraternal 870
63.27%
4.19%
4 Valid probably fraternal 80
5.82%
0.39%
6 Missing refused 6
0.03%
7 Missing legitimate skip 16,114
77.68%
8 Missing don't know 18
0.09%
Total Responses Valid Invalid Min Max
20745 1375 19370 1 4