Adaptive staircase tracks the 70.7 percent correct point on the psychometric function

Evidence

An adaptive three-interval, three-alternative forced-choice (3-AFC) discrimination procedure, coupled with a one-up-two-down staircase rule tracking the 70.7 %-correct point on the underlying psychometric function, was used. — Dijk, Pim van, Physiology, Psychoacoustics and…, 3052

Categorization

• DEFINE: Defines the 3-AFC one-up-two-down staircase tracking the 70.7% point — classic psychoacoustic procedure.
• XREF: Parallels the Milgrom/Levitt 1971 transformed up-down method used in audio psychophysics.