Suppose one observes a correlation between two events, B and C, and infers that B causes C. Later one discovers that event A explains away the correlation between B and C. Normatively, one should now dismiss or weaken the belief that B causes C. Nonetheless, participants in the current study who observed a positive contingency between B and C…

In noun compounds in English, the modifying noun may be singular ("mouse-eater") or an irregularly inflected plural ("mice-eater"), but regularly inflected plurals are dispreferred (*"rats-eater"). This phenomenon has been taken as strong evidence for dual-mechanism theories of lexical representations, which hold that regular (rule-governed) and…