Examines the importance of (1) dimensional characteristics of stimuli present in discrimination transfer tasks, (2) having contrasting stimuli presented simultaneously, and (3) subjects age. Subjects were rural Mexican youths, ages 4 to 10. Reversal and nonreversal type discrimination transfer problems were used in the study. (DP)

Middle- and lower-class children who had been treated by E in a warm or aloof manner were given a discrimination learning task under one of six conditions forming a 3 by 2 design: three reinforcement types (Verbal-intoned, Verbal-nonintoned, or Symbolic) and reinforcement for correct or incorrect responses. (Editor)

Second grade Ss and college students were tested under three conditions of the temporal relationship of feedback and stimulus information. (Editor)

This paper presents further data on the Moss-Harlow Effect, together with some new theory, supporting the conclusion that younger subjects prefer novelty more than do older children. (Author)

This study was designed to investigate the interacting effects of dimensional pre-training and set size on acquisition of a multiple discrimination involving letters of the alphabet. (Author)

Results of the three experiments provided little evidence that the scores on associative matching were adversely affected by prior performance on any of the three modified free-recall tasks. (Authors)

Interpair acoustic and formal similarity are detrimental to verbal discrimination learning when manipulated individually; even larger performance decrements result when they are allowed to covary. (Authors)

Results of three experiments provided no substantial evidence of selective encoding. (Authors/MB)

Presolution reversal prevented or significantly retarded learning in kindergarten and first-grade children but did not hinder learning in fifth-grade children. (Authors)

Predictions for multidimensional generalization were derived from Hull-Spence learning theory, and an experiment is reported that was designed to test this aspect of the theory. Alternative to this analysis is presented in PS 502 062; authors respond in PS 502 063. (Authors/MB)

Research combined an experimental analysis of the cue properties of evaluative comments with a naturalistic account of the functions that such events serve in everyday interchanges. (Authors)