An analysis of signal detection and threshold models of source memory.
The authors analyzed source memory performance with an unequal-variance signal detection theory model and compared the findings with extant threshold (multinomial and dual-process) models. In 3 experiments, receiver operating characteristic (ROC) analyses of source discrimination revealed curvilinear functions, supporting the relative superiority of a continuous signal detection model when compared with a threshold model. This result has implications for both multinomial and dual-process models, both of which assume linear ROCs in their description of source memory performance.
Slotnick
S D
SD
Department of Psychology, Johns Hopkins University, Baltimore, Maryland 21218, USA. slotnick@jhu.edu
Klein
S A
SA
Dodson
C S
CS
Shimamura
A P
AP
D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D008568:Memory; D008606:Mental Processes; D010465:Perception; D017603:Signal Detection, Psychological