that he had given up coffee and had substituted
herbal teas.
Figure 3 shows that Subject 3's mean daily
intake of caffeine decreased during treatment
from his baseline of 1175 mg to 314 mg (a decrease
of 861 mg or almost seven cups of
brewed coffee). His mean daily intake of caffeine
during the 10-month follow-up was 537.3
mg. He exceeded criterion twice, on days 27 and
42. Although Subject 3's caffeine intake during
follow-up was quite high in comparison to the
other subjects' follow-ups, he did average below
the 600 mg treatment goal of less than 5 cups
of brewed coffee per day.
Table 1 lists the mean number of cups of cafeine-containing
beverages consumed per day
during each treatment phase and follow-up. The
table reveals the strategy that the subjects employed
in order to avoid exceeding the criterion
levels, since it shows the amount and types of
reductions that were made. Subjects 1 and 2
simply reduced the number of cups of brewed