Researchers have found that repeated checking causes a paradoxical decrease in memory confidence in healthy participants (van den Hout & Kindt, 2003; 2004) as well as in individuals with obsessive compulsive disorder (Tolin et al., 2001). The current study examines a mechanism of learning that may contribute to memory mistrust in compulsive checkers. Specifically, cognitive psychologists have found that repeated retrieval of specific information from memory inhibits retrieval of related information in what has been termed "retrieval-induced forgetting" (RIF; Anderson et al., 1994). This process may allow one to recall recently accessed information efficiently and with greater certainty by "suppressing" related, but unimportant, search targets. Thus, memory mistrust in compulsive checkers may be related to a lack of RIF for checking relevant information. Contrary to hypothesis, checkers exhibited lower rates of recall overall but exhibited no cognitive bias for threat in the RIF task.