= 0.56) were not. An interaction of Delay × Alcohol Preference was also detected F(4,240) = 3.61, p = 0.007, but interactions with Sex (ps > 0.17), and Experiment (ps > 0.27) were not. Therefore, data were collapsed across Sex and Experiment and analyzed by Delay and Alcohol Preference. A main effect of Delay was present F(4,264) = 21.61, p < 0.001, as well as a Delay × Alcohol Preference interaction F(4,264) = 4.30, p = 0.002, but the main effect of Alcohol Preference (p = 0.72) was not. Therefore, we assessed the effect of Alcohol Preference at each by Delay using t-tests, again Bonferroni-correcting for multiple comparisons to p = 0.01. The 0 delay differed by Alcohol Preference t(66) = 3.16, p = 0.002, but the other delays did not (ps > 0.14). These data indicate that the percentage of forced trials was higher in the low-alcohol drinkers at the 0 delay, but that they were generally similar at other delays.
