The effect of level of stereotypy on learning a discrimination was examined using a factorial design with high and low levels of stereotypy and three levels of IQ with 30 institutionalized retarded persons. Results indicated the effects of stereotypy were different across the IQ levels. (Author/DB)

The effects of meaningfulness of the stimulus materials and the presence or absence of contextual cues on problem-solving behavior were investigated. Third-graders (N=80) were randomly assigned to one of four conditions and their performance in a series of discrimination problems was observed. Subjects in Conditions I and II responded to stimuli…

Four experiments were conducted to assess the effects of certain stimulus variables on children's discrimination learning. In general, it was found that word frequency was negatively related to discrimination learning as long as the words were meaningful to the subjects. Moreover, the relationship between word and performance reversed in…

One of the most important capacities which children employ when learning language is the capacity to generalize. A child who hears an utterance of a verbal expression while perceiving a particular object (or action, aspect, etc.) becomes normally able to apply the expression not only to this object but also to all those objects which, for him, are…

The research reported in this symposium paper attempts to underline a Piagetian distinction concerning object concept which has tended to be ignored by psychologists working along Piagetian lines. More specifically, this research tested the hypothesis that intellectual development plays a role in the development of stranger reactions. The subjects…