Signal-detection methods in personality and perception

Discusses methodological problems encountered in the use of traditional threshold measures in the study of personality and perception. The threshold is shown to: (1) yield results dependent upon the psychophysical method used, (2) be arbitrary in definition, (3) be unimproved by corrections for guessing, and (4) confound the O's sensory capabilities with his criterion for reporting a given stimulus event. Methods derived from signal-detection theory are described. Studies using the logic and methods of signal-detection analysis in personality and perception research are reviewed and their implications discussed. (35 ref.) (PsycINFO Database Record (c) 2006 APA, all rights reserved)