This study was a systematic replication and extension of Fisher, Kodak, and Moore (2007), in which a picture prompt embedded into a least-to-most prompting sequence facilitated acquisition of auditory-visual conditional discriminations. Participants were 4 children who had been diagnosed with autism; 2 had limited prior receptive skills, and 2 had…

This paper describes a project of Communidad Los Horcones (Mexico), dealing with alternatives to contrived or artificial reinforcement. The paper proposes the use of natural reinforcement, which can be individualized and received without the mediation of another person and which contributes to making the natural consequences of behavior…

This commentary on EC 603 646, a paper describing a natural reinforcement project of Communidad Los Horcones (Mexico), argues that natural reinforcement is best when the learning objective produces a natural reinforcer and when the natural reinforcer is more powerful than any competing punishers inherent in the task or reinforcers for competing…