Iwata etal Study Questions PDF

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Iwata, Dorsey, Slifer, Bauman, & Richman (1994) Study Questions 1. Describe the purpose. The use of operant methodology to assess functional relationships between self-injury and specific environmental events 2. Who were the participants? Nine individuals who displayed some type of developmental delay and who were admitted for inpatient evaluation  interviews before exp. said each participant exhibited some type of self-injurious behavior 3. Why was it important to allow participants to engage in self-injurious behavior? In order to assess differential effects of environment on self-injury 4. What experimental design was used? Multielement manipulation design 5. List and briefly describe the experimental conditions evaluated. 8 sessions/day (4/morning & 4/afternoon) duration of 15 mins/each. Social Disapproval – subject/experimenter in room @ same time, w/ toys available, child directed “to go play” while experimenter “does work” at desk (exp. Corrected child if self injurious behavior occurred by saying things such as “don’t do that”) Academic Demand – special education evaluation of each subject taken; exp./subj. sat at table w/ graduated 3 level prompts (verbal  repeat after 5 secs. And modeled correct R  waited 5 secs. Praise given after each response regardless what brought it ab  Made to see if self injurious behavior was brought about by – Sr (escape, avoidance, demanding situations) Unstructured Play – no educational tasks presented and free to play however wanted, given praise for appropriate behavior/30 secs. Free of injury R CONTROL PROCEDURE - Function of an “enriched environment” Alone – subj. in room alone w/o access to toys/external stimulation; served as condition which would serve as “impoverished” or “austere” from social/physical standpoint 6. Two participants exhibited higher rates of self-injury during the academic sessions. What does this mean? They injured themselves more in the academic setting than any other setting 7. Which condition serves as the control? Unstructured play 8. Which condition tests for social positive reinforcement? Social disapproval – statements of concern and social disapproval paired with physical contact contingent upon self injury may maintain behavior via inadvertent delivery of + Sr...