Expectancies for reinforcement from alcohol appear to form during the
grade-school years and play a causal role in problem drinking behavior
. Using a sample of 268 second through fourth graders, we investigated
whether children's expectancies could be modified successfully. Child
ren were randomly assigned to one of four conditions: two experimental
expectancy modification conditions (using 10-minute video interventio
ns), one control condition involving a 10-minute video presenting fact
s concerning alcohol's deleterious effects, and one no-intervention co
ntrol condition. Relative to controls, expectancies were increased by
one experimental condition and decreased by the other; these changes w
ere sustained at 4-week follow-up. This suggests expectancy modificati
on should be tested as an adjunct to current prevention programs. Rela
tions of gender and family history of problem drinking or alcoholism t
o expectancy endorsement are described.