Title page for ETD etd-0411102-154714


Type of Document Dissertation
Author Whitmarsh, Ernest
Author's Email Address ewhitma@lsu.edu
URN etd-0411102-154714
Title An Analysis of the Effects of Contingent Delivery of Tasks with Different Difficulty and Noncontingent Delivery of Tasks with Different Preference
Degree Doctor of Philosophy (Ph.D.)
Department Psychology
Advisory Committee
Advisor Name Title
George H. Noell Committee Chair
Dorothea Lerman Committee Member
Joseph C. Witt Committee Member
Kristin Gansle Committee Member
Kim MacGregor Dean's Representative
Keywords
  • noncontingent
  • task interspersal
  • premack
Date of Defense 2002-04-10
Availability unrestricted
Abstract
This investigation examined instructional strategies derived from the Premack principle and task interspersal strategies for four students with moderate to severe developmental disabilities. In both studies, baseline consisted of massed instruction of thirty trials. During study one, students were given contingent access to preferred easy tasks for correct responding in one condition. In the second condition, students were given contingent access to preferred difficult tasks for correct responding. During study two, students were given noncontingent access to preferred easy tasks for correct responding in one condition. In the second condition, students were given noncontingent access to nonpreferred easy tasks for correct responding. A reversal design was used to evaluate the results. Tasks were identified using a task preference assessment based on the free operant preference assessment. For study one, results indicated that four out of four participants had higher response accuracy when preferred easy tasks were presented contingently. Four out of four participants had lower response accuracy when given contingent access to preferred difficult tasks when compared to the contingent preferred easy task condition. For study two, results indicated that four out of four participants had higher response accuracy when preferred easy tasks were presented noncontingently. Three out of four participants had levels of response accuracy equal to or lower than baseline when nonpreferred easy tasks were presented noncontingently.
Files
  Filename       Size       Approximate Download Time (Hours:Minutes:Seconds) 
 
 28.8 Modem   56K Modem   ISDN (64 Kb)   ISDN (128 Kb)   Higher-speed Access 
  Whitmarsh_dis.pdf 675.46 Kb 00:03:07 00:01:36 00:01:24 00:00:42 00:00:03

Browse All Available ETDs by ( Author | Department )

If you have questions or technical problems, please Contact LSU-ETD Support.