Judi Lapsley Miller
Poster presentation at the Acoustical Society of America Conference
JASA, 107 (5) 2914(A).
One of the biggest problems still facing experimental
psychophysics is observer inconsistency. Observer inconsistency degrades
performance, hampering comparisons with other observers and theoretical
predictions. By repeating an experiment multiple times, using the same stimuli,
observer inconsistency can be reduced and asymptotic errorless performance
estimated by using group operating characteristic (GOC) analysis and function of
replications combined estimation (FORCE) analysis, respectively. These new
techniques are described and illustrated with results from various
psychoacoustic experiments, showing that humans are sometimes capable of
performing as well as an ideal observer once observer inconsistency is reduced.
View poster in pdf format (251 kB)
08 Nov 2009 04:37 PM