title: An approximation to d' for n-alternative forced choice
creator: Alexander, JRM
subject: 380109 Psychological Methodology, Design and Analysis
subject: 380101 Sensory Processes, Perception and Performance
subject: 380100 Psychology
description: An approximation suitable for computer estimation of d' from the total proportion of correct responses in an n-alternative forced choice experiment for any n is described. This approximation implies that ogival psychometric functions can be interpreted as linear in d', which provides signal detection threshold or sensitivity measures allowing comparisons between psychometric functions with different numbers of stimulus alternatives.
publisher: Psychology Department
date: 1990
type: Report
type: NonPeerReviewed
format: application/pdf
identifier: http://eprints.utas.edu.au/475/1/nAFCrev207.pdf
format: other
identifier: http://eprints.utas.edu.au/475/2/Copy_of_nAFC.xls
identifier: Alexander, JRM (1990) An approximation to d' for n-alternative forced choice. Project Report. Psychology Department, Hobart, Tasmania. (Unpublished)
relation: http://eprints.utas.edu.au/475/