“…In a recently published study of distractor-free tests of recognition , Ley and Long (1987) reported data that supported Wallace's (1980) observation that recognition memory can be measured independently of distractors (Wallace, 1978(Wallace, , 1982Wallace, Sawyer, & Robertson, 1978). Ley and Long also demonstrated that false recognitions can be measured in distractor-free tests if the test list follows a single-item presentation procedure (Ley & Karker, 1982) in which all of the targets are presented prior to presentation of distractors. This procedure revealed that the observed number of false recognitions was greater under the discrimination test than under the distractor-free test.…”