Results of a study with 10 moderately retarded adolescents on the salience of transverse compound stimuli (combinations of positive and negative cues) were interpreted as an instance of developmental changes in unlearned stimulus salience hierarchies. The low saliency of transverse compounds was suggested to be related to reading difficulties.…

This case study describes initially unsuccessful attempts to use the delayed-cue procedure to teach conditional discriminations to a 25-year-old male with moderate mental retardation. The subject typically waited for the delayed cue unless differential responses to the dictated samples (repeating the sample names) were required. (Author/DB)

Recognition scores of 12 moderately and mildly retarded children (mean ages 13 and 14 years) for positive and negative discriminative stimuli were tested after a single trial through a discrimination problem list. (Author/CL)

The study compared the task demonstration model and the standard prompting hierarchy in training 8 persons (ages 16-21) with moderate or severe mental retardation on a discrimination task. The task demonstration model was found to be superior during both training and generalization phases. (DB)