Safety signals provide "relief" through predicting the absence of an aversive event. At issue is whether these signals also act as instrumental reinforcers. Four experiments were conducted using a free-operant lever-press avoidance paradigm in which each press avoided shock and was followed by the presentation of a 5-sec auditory safety…

The value of behavior modification treatment was studied in 12 hyperactive children (ages 0-7 years) with a variety of behavioral problems. Journal availability: see EC 111 043. (Author/DLS)

The author discusses some of the limitations of the use of sheltered workshops and behavior modification in vocational rehabilitation for the handicapped and promotes the possibility of on-the-job training as an alternative to sheltered workshops. (EA)

This project successfully taught specific language-based concepts to retarded children with a behavior modification approach and direct verbal instruction, resulting in general intellectual gains. (See TM 504 595 for availability). (Author/CTM)