Jody Steinhilber & Cammarie Johnson. (2007)
The effects of brief and extended stimulus availability on preference.
Journal of Applied Behavior Analysis,
40, 767-772.
The effects of stimulus availability on preference were evaluated using two
conditions of a modified preference assessment. Different preference hierarchies
were found in 15-s access conditions than in 15-min access conditions.
Subsequent comparisons of a short-availability high-preference stimulus and
a long-availability high-preference stimulus verified differential preferences
for stimuli based on duration of availability.
DESCRIPTORS: concurrent chains, developmental disabilities, preference assessment, reinforcer duration