Optimal setups for forced-choice staircases with fixed step sizes

Spatial Vision
Miguel A García-Pérez

Abstract

Forced-choice staircases with fixed step sizes are used in a variety of formats whose relative merits have never been studied. This paper presents a comparative study aimed at determining their optimal format. Factors included in the study were the up/down rule, the length (number of reversals), and the size of the steps. The study also addressed the issue of whether a protocol involving three staircases running for N reversals each (with a subsequent average of the estimates provided by each individual staircase) has better statistical properties than an alternative protocol involving a single staircase running for 3N reversals. In all cases the size of a step up was different from that of a step down, in the appropriate ratio determined by García-Pérez (Vision Research, 1998, 38, 1861 - 1881). The results of a simulation study indicate that a) there are no conditions in which the 1-down/1-up rule is advisable; b) different combinations of up/down rule and number of reversals appear equivalent in terms of precision and cost: c) using a single long staircase with 3N reversals is more efficient than running three staircases with N reversals each: d) to avoid bias and attain sufficient accuracy, threshold estimates should be base...Continue Reading

Citations

Mar 4, 2014·PloS One·Sabrina D ThielBurkhard Pleger
Jan 26, 2011·Attention, Perception & Psychophysics·Miguel A García-PérezEli Peli
Jul 8, 2011·Attention, Perception & Psychophysics·Miguel A García-Pérez, Rocío Alcalá-Quintana
Nov 8, 2013·Attention, Perception & Psychophysics·Miguel A García-Pérez
Oct 7, 2011·The Journal of the Acoustical Society of America·Miguel A García-Pérez
Apr 11, 2013·Behavior Research Methods·Rocío Alcalá-Quintana, Miguel A García-Pérez
Aug 22, 2009·Somatosensory & Motor Research·Cecil A LozanoMarco Santello
May 31, 2007·The British Journal of Mathematical and Statistical Psychology·Miguel A García-Pérez, Rocío Alcalá-Quintana
May 9, 2009·The British Journal of Mathematical and Statistical Psychology·Miguel A García-Pérez
Jun 25, 2014·Frontiers in Human Neuroscience·Miguel A García-Pérez
Mar 10, 2001·Optometry and Vision Science : Official Publication of the American Academy of Optometry·M A García-Pérez
Dec 24, 2019·The Spanish Journal of Psychology·Miguel Ángel García-Pérez, Rocío Alcalá-Quintana
May 30, 2009·The Spanish Journal of Psychology·Miguel Angel García-Pérez, Rocío Alcalá-Quintana
May 10, 2019·I-Perception·Miguel A García-Pérez, Eli Peli
Apr 2, 2020·Behavior Research Methods·Miguel A García-Pérez, Rocío Alcalá-Quintana
Dec 21, 2019·Psychological Medicine·Victor J PokornyScott R Sponheim
Jun 16, 2018·Neuropsychologia·Laureline ArnaudLucie Ménard

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