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Direct linkWallace, Michelle D.; Iwata, Brian A.; Hanley, Gregory P.; Thompson, Rachel H.; Roscoe, Eileen M. – Journal of Applied Behavior Analysis, 2012
We conducted 2 studies to determine whether dense and thin NCR schedules exert different influences over behavior and whether these influences change as dense schedules are thinned. In Study 1, we observed that thin as well as dense NCR schedules effectively decreased problem behavior exhibited by 3 individuals. In Study 2, we compared the effects…
Descriptors: Positive Reinforcement, Behavior Problems, Comparative Analysis, Functional Behavioral Assessment
Wilson, David M.; Iwata, Brian A.; Bloom, Sarah E. – Journal of Applied Behavior Analysis, 2012
We evaluated an inexpensive, efficient, and noninvasive technique for measuring tissue damage produced by self-injurious behavior (SIB). The technique involved computerized measurement of wound surface area (WSA) based on digital photographs. In Study 1, we compared photographic measurement to a more commonly used procedure, transparency…
Descriptors: Self Destructive Behavior, Observation, Scientific Concepts, Computer Assisted Testing
Thomason-Sassi, Jessica L.; Iwata, Brian A.; Neidert, Pamela L.; Roscoe, Eileen M. – Journal of Applied Behavior Analysis, 2011
Dependent variables in research on problem behavior typically are based on measures of response repetition, but these measures may be problematic when behavior poses high risk or when its occurrence terminates a session. We examined response latency as the index of behavior during assessment. In Experiment 1, we compared response rate and latency…
Descriptors: Behavior Problems, Reaction Time, Functional Behavioral Assessment, Experiments
Download full textBloom, Sarah E.; Iwata, Brian A.; Fritz, Jennifer N.; Roscoe, Eileen M.; Carreau, Abbey B. – Journal of Applied Behavior Analysis, 2011
We evaluated a trial-based approach to conducting functional analyses in classroom settings. Ten students referred for problem behavior were exposed to a series of assessment trials, which were interspersed among classroom activities throughout the day. Results of these trial-based functional analyses were compared to those of more traditional…
Descriptors: Class Activities, Learning Activities, Self Destructive Behavior, Behavior Modification
Thompson, Rachel H.; Iwata, Brian A. – Journal of Applied Behavior Analysis, 2007
We compared results of descriptive and functional analyses of problem behavior for 12 participants whose descriptive data have been reported previously (Thompson & Iwata, 2001). Results indicated that in only 3 of the 12 cases was problem behavior maintained by the consequence observed most frequently during the descriptive analysis. Attention was…
Descriptors: Behavior Problems, Comparative Analysis, Attention Control, Mental Retardation
Peer reviewedIwata, Brian A.; And Others – Journal of Applied Behavior Analysis, 1993
This study compared differential reinforcement of other behavior (DRO) and noncontingent reinforcement (NCR) in the reduction of self-injurious behavior in three adult females with severe or profound mental retardation. Both procedures were highly effective in reducing self-injury, with NCR less limited than DRO. (Author/DB)
Descriptors: Adults, Attention, Behavior Modification, Behavior Problems
