Results of these experiments indicate that the ability to deal with positive and negative instances is not only contingent upon developmental level, but also upon the dimensional characteristics of the stimuli. (Author)

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)

Main purpose of this study is to demonstrate a control procedure which allows the researcher to investigate behaviors which are lawfully related to charity stimuli and assess the influence of uncontrolled variables in charity situations. (Author)

Successful instructional programs are shaped through teachers' understanding of student attitudes. This study indicates that this understanding may be lacking in today's high schools. (Editor)

Test format can influence test performance as well as the nature and extent of general classroom achievement. (Authors)

Study was designed to provide further evidence on the speed of development of the acquired distinctiveness and equivalence effects during the transfer task. (Author)

Videotapes of two 17-month old children -- each child sometimes described as a boy and sometimes as a girl -- were shown to 85 adult middle-class subjects, who rated attributes of the children on questionnaires containing sex role items. (Authors/RY)

Young children's iconic storage is longer than that of older children and adults but young children process the information in iconic storage relatively slowly. (Authors)

Experiment studied the effectiveness of social reinforcement by a model who demonstrated varying degrees of commitment to the norm of giving or social responsibility. (Authors)

Middle-class teachers were significantly more permissive and less puritanical in outlook, took more pleasure in the emotional aspects of teacher-pupil relationships, and showed less authoritarian attitudes toward children than did lower-class teachers. (Author/MB)