title: Bootstrap estimates of the statistical accuracy of thresholds obtained from psychometric functions.
abstract: Estimates of the accuracy of a threshold obtained from a psychometric function are often based on asymptotic theory. When the number of trails is small, however, these estimates may be untrustworthy. A computer program is described that uses a move reliable bootstrap approach to obtaining estimates of the standard deviation and confidence limits of a threshold and of the slope and spread of the psychometric function for any criterion level of performance.
authors: Department of Vision Sciences, Aston University, Birmingham B4 7ET, UK. d.h.foster@aston.ac.uk
authors: D H
authors: DH
authors: Foster
authors: W F
authors: WF
authors: Bischof
mesh_terms: D003627:Data Interpretation, Statistical; D011594:Psychometrics / Q000706:statistics & numerical data*; D018709:Statistics, Nonparametric