ZA6701_zygosity

The data set contains the survey data of the zygosity questionnaire, which was used to determine the zygosity of the twins in the first data collection.

Variables

Sort	Variable	Name
1	family ID (scientific use file)	fid
2	household ID wave-specific (scientific use file) (F2F 1)	hid_1
3	person ID (scientific use file)	pid
12	value of zygosity discriminant function (gen)	zyg0109
85	subsequently completed zygosity questionnaire (gen)	sdc0100
6	month zygosity questionnaire was conducted (gen)	mon_zq
4	type of respondent	ptyp
0	subsample (gen)	wav0100
5	year zygosity questionnaire was conducted (gen)	yea_zq
7	result zygosity questionnaire (gen)	zyg0100
8	result saliva test (gen)	zyg0101
9	final zygosity: result zygosity questionnaire corrected by DNA-test result (gen)	zyg0102
10	age twins (m/f)	zyg0105
11	sex twins (m/f)	zyg0106
13	duplicate of zygosity details used	zyg0110
14	value of zygosity discriminant function (gen)	zyg0200
15	height in cm twin 1 (m/f)	zyg0200t
16	height in cm twin 2 (m/f)	zyg0200u
17	result saliva test (gen)	zyg0201
18	difference: twins' hair color (m/f)	zyg0300
19	difference: twins' hair texture (m/f)	zyg0301
20	difference: twins' eye color (m/f)	zyg0302
21	difference: twins' earlobes (m/f)	zyg0303
22	twins' tooth development simultaneous (m/f)	zyg0400
23	twins' blood group known (m/f)	zyg0500
24	blood group twin 1 (t,u,m/f)	zyg0501
25	rhesus factor twin 1 (t,u,m/f)	zyg0502
26	blood group Zwilling 2 (t,u,m/f)	zyg0503
27	rhesus factor Zwilling 2 (t,u,m/f)	zyg0504
28	differences resulting from difficulties in childbirth, accident, illness (m/f)	zyg0600
29	twins' similarity with increasing age (m/f)	zyg0602
30	assessment: zygosity of twins (m/f)	zyg0700
31	determination of zygosity (m/f)	zyg0702
32	similarity of the twins in earlier photographs (m,f)	zyg0800
33	twins confused with each other in past: by other parent (m/f)	zyg0801
34	twins confused with each other in past: by older sibling(s) (m/f)	zyg0802
35	twins confused with each other in past: by other relatives (m/f)	zyg0803
36	twins confused with each other in past:by b-sitter/in-home daycare provider(m/f)	zyg0804
37	twins confused with each other in past: by close friends (m/f)	zyg0805
38	twins confused with each other in past: by distant friends (m/f)	zyg0806
39	twins confused with each other in past by people meeting them 1. time(m/f)	zyg0807
40	frequency of confusion between twins (m/f)	zyg0808
41	resemblance of twins in early childhood (m/f)	zyg0809
42	other twins in family: children's generation, mother's side (t,u,m/f)	zyg0900
43	other twins in family: children's generation, father's side (t,u,m/f)	zyg0901
44	other twins in family: generation of children's children, mother's side (t,u)	zyg0902
45	other twins in family: generation of children's children, father's side (t,u)	zyg0903
46	other twins in family: parents' generation, mother's side (t,u,m/f)	zyg0904
47	other twins in family: parents' generation, fathers's side (t,u,m/f)	zyg0905
48	other twins in family: grandparents' generation, mother's side (t,u,m/f)	zyg0906
49	other twins in family: grandparents' generation, father's side (t,u,m/f)	zyg0907
50	no other twins in family (t,u,m/f)	zyg0908
51	zygosity of other twins: children's generation, mother's side (t,u,m/f)	zyg0920
52	zygosity of other twins: children's generation, father's side (t,u,m/f)	zyg0921
53	zygosity of other twins: generation of children's children, mother's side (t,u)	zyg0922
54	zygosity of other twins: generation of children's children, father's side (t,u)	zyg0923
55	zygosity of other twins: parents' generation, mother's side (t,u,m/f)	zyg0924
56	zygosity of other twins: parents' generation, fathers's side (t,u,m/f)	zyg0925
57	zygosity of other twins: grandparents' generation, mother's side (t,u,m/f)	zyg0926
58	zygosity of other twins: grandparents' generation, father's side (t,u,m/f)	zyg0927
59	firstborn twin (t,u)	zyg1000
60	final zygosity: result zygosity questionnaire corrected by DNA-test result (gen)	zyg1100
61	additional body hair (t,u)	zyg1101
62	additional body hair other twin (t,u)	zyg1102
63	own eye color (t,u)	zyg1200
64	eye color other twin (t,u)	zyg1202
65	difference: eye color (t,u)	zyg1204
66	own eye color, zyg1200 and open response zyg1201 combined (gen)	zyg1205
67	eye color other twin, zyg1200 and open response zyg1201 combined (gen)	zyg1206
68	change zygosity calcul. using zyg1205, zyg1206 instead of zyg1200, zyg1202 (gen)	zyg1207
69	difference: earlobes (t,u)	zyg1300
70	own skin color (t,u)	zyg1400
71	skin color other twin (t,u)	zyg1401
72	been confused with other twin in the past (t,u)	zyg1500
73	been confused with other twin in the past: by parents (t,u)	zyg1501
74	been confused with other twin in the past: by sibling(s) (t,u)	zyg1502
75	been confused with other twin in the past: by friends (t,u)	zyg1503
76	been confused with other twin in the past: by teachers (t,u)	zyg1504
77	been confused with other twin in the past: by people at first meeting (t,u)	zyg1505
78	in the past: effort to tell twins apart (t,u)	zyg1506
79	telling twins apart in recent photos (t,u)	zyg1507
80	own tendency to sweat (t,u)	zyg1600
81	other twin's tendency to sweat (t,u)	zyg1601
82	twins ill equally often (t,u)	zyg1700
83	assessment: zygosity of twins (t,u)	zyg1800
84	information about zygosity (t,u)	zyg1801

Info

Study: twinlife

Dataset: ZA6701_zygosity_v5-0-0

Attention

zygosity data

Variables