A multi-category psychometric function maps response category probabilities onto stimulus level

Evidence

A psychometric function describes the probability of a particular response as a function of an experimental variable. We introduce the concept of a multi-category psychometric function, which represents the probability distribution across multiple response categories as a function of an experimental variable. In a MCPF, a family of curves demarcates the probabilities of multiple categories as a function of stimulus level. — Dijk, Pim van, Physiology, Psychoacoustics and…, 2512

Categorization

• DEFINE: Defines MCPF as an extension of the classic psychometric function to multiple response categories.