To determine why the familiarization-novelty paradigm tends to underestimate the ability of infants under 4 months of age to detect unidimensional differences between stimuli, groups of 14- and 20-week-olds were given unidimensional discrimination problems of varying difficulty under conditions of brief and prolonged familiarization. (Author/JMB)

A learning-to-learn approach was taken in the present study in an attempt to draw the subjects' attention to the associative relations among items and to examine whether the presentation of four functionally equivalent interitem lists would result in the subjects' using a higher cognitive strategy. (Author/RK)

The use of discrimination learning paradigms in the study of attentional transfer is discussed. (Editor)

Three experiments are reported on behavioral inference in children of 3 to 5 years of age. In each experiment the children learned two separate sequences of behavior which they were required to put together in the final test stage in order to obtain a reward. (MS)

Response to PS 502 660. (CB)

This study is the first demonstration of sequential contrast effects with human subjects during the acquisition of a discrimination without errors. Results are discussed in terms of Terrace's theory of errorless learning. (Editor/RK)

In a recently reported study, the functional components of imagery and vocalization strategies in children's verbal discrimination learning were examined, following the combined experimental/correlational logic of Underwood. The present research extends those results to a strategy that (unlike imagery and vocalization) has a positive influence on…

Subjects' rehearsal strategies in learning a 32-pair mixed list of high- and low-imagery pairs of nouns during the four study trials in an alternating study/test presentation were measured. (Editor)

The present study replicated the procedure of Kausler et al. (1975) as a means of testing further the hypothesis that the processing of wrong items differs qualitatively, as well as quantitatively, from the processing of right items. (Author)

It is urged that investigators lay aside demonstrations of the existence of mediation in young children as focus of research, substituting a search for the conditions of its occurrence. (Authors)

Replies to Gholson's commentary (PS 522 655) on the article by Coldren and Colombo in this monograph. Discusses limitations in the shift procedure methodology traditionally used in research on discrimination learning, and considers the use in future research of methodologies that can precisely decompose children's responses to feedback during…

Predictions of two-stage learning theories were evaluated by measuring observing responses which produced the discriminative stimuli for .5 sec. (Editor)

Whether a stimulus compound is separable or integral has predictable consequences for several human information processing tasks. The purpose of these experiments was to explore the implications of this distinction for research in animal learning and the development of learning theory. (Author/RK)

Ten author-contributed papers present information on stimulus control research and developmental disabilities. Articles address such isues as the role of naming, development of stimulus classes, control by exclusion, and comparison of trial-and-error and graduated stimulus change procedures. (CL)