D3 ALIKE THROUGH AGE EIGHT-PQ

Variable Description

Name
PD3
Label
D3 ALIKE THROUGH AGE EIGHT-PQ
Dataset
parent1

Summary Statistics for 'PD3'

Value Valid Label Frequency % of Valid % of All
. Missing missing 3,236
15.60%
1 Valid as alike as tw o peas in a pod 498
36.51%
2.40%
2 Valid of a normal family likeness 866
63.49%
4.17%
6 Missing refused 10
0.05%
7 Missing legitimate skip 16,114
77.68%
8 Missing don't know 21
0.10%
Total Responses Valid Invalid Min Max
20745 1364 19381 1 2

Representation

Representation Type
Code List
Selection Style
SelectOne
Measurement Unit
numeric
Measurement Unit
numeric
Aggregation Method
Unspecified
Temporal
False
Geographic
False

Source Questions

PD3

Lineage

  • Parents (1995) - PD3
    D3 ALIKE THROUGH AGE EIGHT-PQ
    • PD3
      3. Until they were 8 years old, how alike were the twins?

Concordance

Add Health
Wave I
Parents (1995)
Parents (1995)
PD3
as alike as tw o peas in a pod
36.51%
of a normal family likeness
63.49%
Add Health
Wave I
Parents (1995)
Parents (1995)
PD3
as alike as tw o peas in a pod
2.40%
of a normal family likeness
4.17%
Dataset Variable Valid Invalid Min First Quartile Median Third Quartile Max Mean StdDev
Parents (1995) PD3 1,364 19,381 1 2
Add Health
Wave I
Parents (1995)
Parents (1995)
PD3
as alike as tw o peas in a pod 1
of a normal family likeness 2