In two studies, we explored whether susceptibility to false memories and the underestimation of prior memories tap overlapping memory phenomena. Study 1 investigated this issue by administering the Deese/Roediger–McDermott task and the forgot-it-all-along task to an undergraduate sample . It was furthermore explored how performances on these tasks correlate with clinically relevant traits such as fantasy proneness, dissociative experiences, and cognitive efficiency. Results show that FIA and DRM performances are relatively independent from each other, suggesting that these measures empirically apparently (...) refer to separate dimensions. However, they do not seem to define different profiles in terms of dissociation, fantasy proneness, and cognitive efficiency. Study 2 replicated the finding of relative independence between false memory propensity and the underestimation of prior memories in people with a history of childhood sexual abuse. (shrink)