Wanted to link this here.
http://socionic.info/pdf/couples.pdf
Bukalov A.V., Karpenko O.B., Chykyrysova G.V.
Statistics of intertype relationships in married couples
The study of socionic type allocation in casually selected married couples confirmed the main
rules of the theory of intertype relations in socionics. So, the dual relations (full addition) make
45 % and the intraquadral relations make 64 % of investigated couples.
During consultation of business collectives and various socionic studies, including definition of socionic type
of the person, we casually met married couples. The obtained sample was investigated by socionic methods.
We have processed data on 119 married couples and the received results are of significant interest for checking
of socionic postulates and models [7, 8].