The Tower of London test (Table 3) results showed that, on the easiest problems (3 moves), alcoholic subjects and controls did not differ for the number of moves (F1,58 = 0.72, P = .40), for the time needed to initiate the first move (F1,58 = 0.44, P = .51), or for the time to solve the problem (F1,58 = 0.34, P = .73). In problems requiring 5 moves, the 2 (group) × 3 (type of problem: neutral, facilitating, and misleading) ANOVA on the number of moves revealed a main effect of group (F1,58 = 6.02, P = .02) and showed that the alcoholic subjects took significantly more moves to solve the problems. There was also a main effect of type of problem (F2,116 = 6.5, P = .002). Post hoc analyses revealed that the number of moves was equivalent between the neutral and misleading problems but was greater for both than for facilitating problems. There was no significant group by type of problem interaction (F2,116 = 0.99, P = .37). Two-way, 2 (group) × 3 (type of problem) ANOVAs were carried out on the initiation and subsequent times. For the initiation time, the analysis showed no main effect of group (F1,58 = 1.3, P = .27) or type of problem (F2,116 = 1.9, P = .14). There was no significant group by type of problem interaction (F2,116 = 1.45, P = .23). For the subsequent time, significant effect of type problem (F2,116 = 29.9, P<.001) was observed. Either significant effect of group (F1,58 = 0.29, P = .59) or significant interaction between these 2 factors emerged (F2,116 = 0.42, P = .66).