ing modification of coffee drinking after treatment.
Accordingly, special attention was paid
to the veracity of the subjects' follow-up reports
by contacting the significant others at each follow-up
check.
One, and often two, of the subjects' significant
others was telephoned immediately following
each 2-week follow-up check and asked the
following questions: (1) The brand(s) of coffee
the subject drank most often; and (2) Whether
the subject was consuming approximately more,
less, or the same number of cups of coffee daily
during that follow-up period as he/she had been
consuming at the end of treatment and during
any previous follow-up periods. In all cases,
the significant others' reports agreed with the
subjects' reports regarding brands of coffee and
were within one cup regarding the number of
cups consumed. Inasmuch as Subjects 1 and 2
were married and served as each other's significant
other, their second significant others
were always contacted to corroborate both their
self-reports and their reports on each other.