ZA6701_zygosity_v7-1-0/zyg0400:

en de
1 1: yes, both got the same teeth on the same side just a few days apart. 1: yes, both got the same teeth on the same side just a few days apart.
2 2: yes, both got the same teeth but on different sides just a few days apart. 2: yes, both got the same teeth but on different sides just a few days apart.
3 3: yes, both got different teeth just a few days apart. 3: yes, both got different teeth just a few days apart.
4 4: no, the twins got their teeth at quite different times. 4: no, the twins got their teeth at quite different times.
-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
Measure Value
valid 2069
invalid 4081

German Socio-economic Panel (SOEP)