Evaluation of absolute and relative reinforcer value using progressive ratio schedules

<p>We evaluated behavior exhibited by individuals with developmental disabilities using progressive ratio schedules. High- and low-preferred stimuli were determined based on the results of a paired-stimulus preference assessment and were evaluated in subsequent reinforcer and progressive ratio assessments using concurrent- and single-operant schedules of presentation in a modified reversal design. Results showed that for two participants, stimuli determined to be low-preferred via a preference assessment functioned as reinforcers when evaluated independently of high-preferred stimuli and under gradually increasing response requirements. The results suggest that for cases in which a high-preferred stimulus is unavailable or unfeasible, the contingent delivery of relatively less-preferred stimuli may maintain appropriate behavior, even as response effort is increased. In addition, results of the progressive ratio evaluation are suggestive of stimulus value.</p>

Name thesis:degree_name

Master of Arts (M.A.)

Level thesis:degree_level

Thesis - Pacific Access Restricted

Discipline thesis:degree_discipline

Psychology

Year dc:date.available

2007

Author dc:creator

• Francisco, Monica T.

Contributors dc:contributor

• John C. Borrero

• Human behavior Mathematical models
• Reinforcement (Psychology)
• Psychology
• Social and Behavioral Sciences

Licence

• http://rightsstatements.org/vocab/InC/1.0/

Repository record dc:identifier

https://scholarlycommons.pacific.edu/uop_etds/672

OAI identifier oai:identifier

oai:scholarlycommons.pacific.edu:uop_etds-1671