Alcalá Quintana, RocíoGarcía Pérez, Miguel Ángel2023-06-202023-06-202004-061082-989Xdoi.10.1037/1082-989X.9.2.250https://hdl.handle.net/20.500.14352/51755Variants of adaptive Bayesian procedures for estimating the 5% point on a psychometric function were studied by simulation. Bias and standard error were the criteria to evaluate performance. The results indicated a superiority of (a) uniform priors, (b) model likelihood functions that are odd symmetric about threshold and that have parameter values larger than their counterparts in the psychometric function, (c) stimulus placement at the prior mean, and (d) estimates defined as the posterior mean. Unbiasedness arises in only 10 trials, and 20 trials ensure constant standard errors. The standard error of the estimates equals 0.617 times the inverse of the square root of the number of trials. Other variants yielded bias and larger standard errors.engjournal articlehttp://dx.doi.org/10.1037/1082-989X.9.2.250http://www.apa.org/pubs/journals/met/index.aspxrestricted access519.233.2159.9.072Error of MeasurementParametric Statistical TestsPsychometricsStatistical EstimationError de medidasPruebas estadísticas paramétricasPsicometríaEstimación estadísticaPsicología experimentalPsicometría6106 Psicología Experimental6105.05 Psicometría