Institutionalized mentally retarded children performed on a two-choice discrimination task under one of six conditions of reward. One indication of the results was that response-contingent non-consumable rewards were not more distracting than response-contingent consumable rewards. (Author/KM)

Study lends support to the view that the problem with left-right stems from the imperfect mastery of the basic discrimination, not from an inability to deal with the logic of relational concepts. (Author/CB)

Experiment was concerned with the validity of the assumptions involved in the proposal of some minor modifications in the frequency theory of verbal-discrimination learning. (Author/CB)

Findings were: it did not matter whether the seriation involved the hues used in subsequent tasks or other hues; the presence or absence of reinforcement during perceptual pretraining did not affect pretraining, training, or transposition behavior; and seriation pretraining produced increased transposition in the intermediate-hue problem.…

Frequency theory of verbal discrimination learning holds that the correct and incorrect alternatives of each word pair acquire differential frequencies. (Author/MB)

Study attempts to clarify the attentional versus perceptual learning functions of presence of the discriminative stimuli during delay. (Authors)

Performance was consistently higher for pictures than for words, and this difference was unaffected by age, response mode, or presentation paradigm. (Author)

Results indicate that the RCR (rehearsal-of-the-correct-alternative response) plays an important role such that when the RCR is inhibited, performance is reduced. (Authors/CB)

Discovering a child's possible auditory and visual perceptual problems at the reading readiness stage may save him years of frustration in reading. (MM)

Four experiments using varying methodological factors examined the frequency theory of verbal discrimination learning. (MB)

Analyses indicated that varying the range of test stimuli changes the discriminability of the stimuli within that range, even though the physical differences among these stimuli remain constant. (Author)

Article attempts to provide guidelines for a systematic approach in dealing with position biases in order to improve the adequacy of decisions about hypothetical statements. (MB)