a b s t r a c t Some researchers have attempted to determine whether situations in which a single cue is paired with several outcomes (A–B, A–C interference or interference between outcomes) involve the same learning and retrieval mechanisms as situations in which several cues are paired with a single outcome (A–B, C–B interference or interference between cues). Interestingly, current research on a related effect, which is known as retrieval-induced forgetting, can illuminate this debate. Most retrieval-induced forgetting experiments are based on an experimental design that closely resembles the A–B, A–C interference paradigm. In the present experiment, we found that a similar effect may be observed when items are rearranged such that the general structure of the task more closely resembles the A–B, C–B interference paradigm. This result suggests that, as claimed by other researchers in the area of contingency learning, the two types of interference, namely A–B, A–C and A–B, C–B interference, may share some basic mecha-nisms. Moreover, the type of inhibitory processes assumed to underlie retrieval-induced forgetting may also play a role in these phenomena.