A study of three children (ages 3-9) with severe problem behavior investigated alternatives to the typical application of noncontingent reinforcement (NCR) for problem behavior. Instead of using continuous access to reinforcers and extinction, the study found that an NCR schedule based on latency and NCR without extinction were more effective for…

Three experiments involving four children (ages 3-7) with mental retardation found participants preferred unreliable reinforcements under certain conditions. Findings are discussed regarding the role of specific stimuli as conditioned reinforcers and how they influence preference for a response that produces reinforcement on a leaner schedule than…

A study compared the effects of extinction (EXT) and fixed-time (FT) schedules as treatment for the severe problem behaviors of three individuals with developmental disabilities. During EXT, the reinforcer maintaining problem behavior was withheld. During FT, the reinforcers were presented response independently at preset intervals. FT schedules…

Effects of extinction and negative reinforcement on latency of responses (including aggression and self-injurious behavior) following activity requests to an adolescent girl with mental retardation and autism were evaluated. Results showed that latencies occurred in a predictable order. The response class was expanded to include an appropriate…

A behavioral consultation approach was effectively used to reduce problem behaviors in 2 field studies with 3 students (ages 10-14) having severe or profound mental retardation and their teachers. Intervention involved extinction of inappropriate behaviors, reinforcement of appropriate play behaviors, and teaching verbal skills functionally…

A six-year old with developmental delays who exhibited aggression when asked to pick up his toys was studied to determine the effects of interventions. Treatment included praise, a break, and access to the toys contingent on compliance. Results showed aggression decreased only with social interaction during the break. (Author/CR)

A functional analysis of eye poking by a four-year-old female with severe developmental disabilities and visual impairments showed that high rates occurred in all conditions. Attempts to identify the maintaining variable found that eye poking decreased only when finger-eye contact was interrupted by blocking the response. (Author/DB)

Functional communication training, extinction, and response chaining decreased escape-maintained aberrant behavior and increased task participation of 3 youth, ages 10 through 15, with moderate mental retardation, 2 of whom also had autism. Task escape was contingent on verbally responding and completing task steps. Behavior chaining also…

This study evaluated self-control and impulsivity in two nine-year- old males with severe developmental disabilities and behavior disorders. Functional analyses suggested that aggression was reinforced by food access. A differential reinforcement procedure to reinforce appropriate mands was implemented. Although aggression occurred when it…