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d'plus: A program to calculate accuracy and bias measures from detection and discrimination data.
1Department of Psychology, Brooklyn College of CUNY, Brooklyn, NY 11210, USA. nmacmill@broadway.gc.cuny.edu
Spatial Vision
|January 1, 1997
Summary
The d
Area of Science:
- Psychology
- Cognitive Science
- Psychophysics
Background:
- Accurate measurement of perceptual decision-making is crucial in various fields.
- Existing methods may not cover diverse experimental designs.
- Signal Detection Theory (SDT) and related models offer robust frameworks.
Purpose of the Study:
- To introduce the d'plus software for calculating key parameters in perceptual tasks.
- To provide a versatile tool for analyzing data from multiple experimental paradigms.
Main Methods:
- The d'plus program utilizes Signal Detection Theory, Choice Theory, and nonparametric models.
- It is designed to process data from one-interval, two-interval, and three-interval forced-choice tasks.
- The software also supports same-different, ABX, and oddity paradigms.
Main Results:
- d'plus calculates accuracy (sensitivity) and response-bias parameters.
- The program demonstrates applicability across a wide range of common experimental designs.
Conclusions:
- d'plus offers a unified approach to analyzing perceptual data.
- This software enhances the quantitative analysis of decision-making in various experimental contexts.
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