ZA6701_zygosity_v7-1-0/zyg1507:

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none:
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en de
1 1: yes, without any problems. 1: yes, without any problems.
2 2: yes, but with some difficulty. 2: yes, but with some difficulty.
3 3: no, we often get mistaken for one another in photographs. 3: no, we often get mistaken for one another in photographs.
-87 -87: multiple answers -87: multiple answers
-90 -90: no participation in survey wave -90: no participation in survey wave
-92 -92: no participation in survey module -92: no participation in survey module
-93 -93: unclear classification of system missing -93: unclear classification of system missing
-94 -94: technical error / faulty insertion -94: technical error / faulty insertion
-95 -95: doesn't apply (screened out) -95: doesn't apply (screened out)
-98 -98: don't know -98: don't know
-99 -99: not specified (refused to answer) -99: not specified (refused to answer)
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Info

zyg1507

telling twins apart in recent photos (t,u)

: telling twins apart in recent photos (t,u)

ZA6701_zygosity_v7-1-0 – zygosity data

:

:

: F2F 1

: TwinLife

Measure Value
valid 4077
invalid 2073

German Socio-economic Panel (SOEP)