Inevitably, participants in the practice under scrutiny have
some array of motives for conformity or for deviation. The descriptive
account should, so far as possible, include an account of these motivations,
but these motives must not be confused, as we have seen, with (a) the objective
pattern of the behavior or (b) with the social functions of that pattern.
Inclusion of motives in the descriptive account helps explain the psychological
functions subserved by the pattern and often proves suggestive with respect
to the social functions (1968, p. 113).