In Skinner's analysis of verbal behavior, three categories of environmental control over instances of verbal behavior appear to be relevant to the study of infant vocal development: the mand, the tact, and the echoic categories. Procedures used in the remediation of language deficiencies and procedures found in work in the area of language…

A study involving four boys (9 to 14 years old) labeled as emotionally handicapped was conducted to examine the effect of a verbal cueing technique (involving an illogical statement which evokes psychological reactance) on behaviorally disordered children. Illogical statements made by the teacher produced positive change in target behaviors (such…