First, the content of the similarities associated with
improved relationship outcomes covers an
impressively disparate array of topics.
Second, even the most trivial similarities can lead
to positive sentiments toward another person.
Laboratory experiments informing participants that
they and another participant share: a preference
for Klee versus Kandinsky paintings (Ames, 2004),
the tendency to over- or under-estimate the
number of dots on a computer screen (Galinsky &
Moskowitz, 2000), or purported similarity in
fingerprint patterns (Burger et al., 2004), have all
enhanced relationship-related outcomes.
Correlational studies show comparably surprising
findings.