A number of recent reports have investigated false memories using variants
of the Deese-Roediger-McDermott (DRM) paradigm. Because these false memorie
s have been difficult to eliminate, this study investigated whether false r
ecognition could be reduced by incorporating source-monitoring criteria int
o decision processes. Making claims about the manner in which items were le
arned should require more careful scrutiny of memories, and therefore false
recognition should be minimized with source instructions as compared with
old-new recognition instructions. In 3 experiments that varied the combinat
ion of sources, false recognition was increased rather than reduced by appl
ying source-monitoring processes. The theoretical implications of these cou
nterintuitive results are discussed in terms of the old-new detection compo
nent of source judgments.