The present study examined the overjustification effect at the individual level, using a multiple-baseline design. After successfully observing the overjustification effect with at least two participants in a single subjects design, recovery to baseline evaluated, but not observed. Experiment 2 used a similar multiple-baseline procedure as Experiment 1 to evaluate an incentive contrast interpretation of the overjustification effect. Instead of manipulating external consequences, the response-produced consequences of the target behavior were manipulated. Under these conditions, an effect similar to the overjustification effect was observed with only one out of three participants when response-produced consequences were withdrawn. As a result, Experiment 2 provided limited support for the incentive contrast interpretation of the overjustification effect, which states that the effect is a result of reduction in the total amount of reinforcement, regardless of its source.
| Identifer | oai:union.ndltd.org:TCU/oai:etd.tcu.edu:etd-11092010-123507 |
| Date | 09 November 2010 |
| Creators | Peterson, Sean Patrick |
| Contributors | Anna I. Petursdottir |
| Publisher | Texas Christian University |
| Source Sets | Texas Christian University |
| Language | English |
| Detected Language | English |
| Type | text |
| Format | application/pdf, application/octet-stream |
| Source | http://etd.tcu.edu/etdfiles/available/etd-11092010-123507/ |
| Rights | unrestricted, I hereby certify that, if appropriate, I have obtained and attached hereto a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dissertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to TCU or its agents the non-exclusive license to archive and make accessible, under the conditions specified below, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report. |
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