Examiner differences on actual WISC protocols

Interrater differences in scoring actual WISC protocols were determined for three different IQ levels. In general, differences among the 94 examiners tended to be within an acceptable range as established by the SE_m; varince on two Verbal subtests occasionally exceeded their corresponding SE_m. Also, examiner's demographic characteristics were not a major consistent source of variance in scoring WISC protocols.     

Converging evidence for the functional significance of imagery in problem solving

Two kinds of explanations have been offered for the process by which three-term series problems are solved, one in terms of linguistic principles and the other in terms of visual-spatial imagery. Two experiments are reported in which three different classes of operations are brought to bear on the problem: (1) Manipulation of stimulus attributes (characteristics of problems), (2) manipulation of variables that selectively encourage or inhibit the use of imagery (facilitating instructions; the suppression of visualization by reading), and (3) measurement of relevant individual differences (spatial-reasoning ability). All of the results indicate that imagery plays a functional but not a necessary role in the solution of three-term series problems; it is suggested that imaginal representation is functional because it reduces the load on memory. An adequate explanation of problem-solving will have to address certain general issues, such as the diversity of forms of cognitive representation and differences within and between individuals in the choice of problem-solving strategies.     

Memory scanning for words in visual images

This study attempts to replicate an experiment reported by Seamon (1972). In the present investigation, as in the study by Seamon, the scanning of short-term memory was compared when its contents were rehearsed words vs. a mental image. Memory sets were composed of either one, two, or three words. In the relational imagery group, subjects were required to form a single interactive mental scene of the entities which the memory set words represent. Nonimagery subjects were given instructions to covertly rehearse the memory set. In both groups, the usual memory set size (m) effect was obtained, i.e., reaction time (RT) increased linearly with m. Moreover, the set size effect was the same for both groups. This latter finding stands in marked contrast to the result obtained by Seamon; he found no effect of set size when subjects were given interactive imagery instructions. Because of the failure to replicate Seamon, an additional group of subjects were given imagery instructions. For this latter group, some of the procedural discrepancies between the relational imagery group of the present study and the corresponding group in Seamon’s study were resolved. Also, in this additional group, the set size effect was examined as a function of the subjects’ ratings of the quality of the images which they had formed. The same set size effect was found for this additional group, and the effect was independent of image quality.     

The training of telephone crisis intervention volunteers

Telephone crisis intervention services are growing at a very rapid rate. A review of the literature reveals that there are very few references to this new phenomenon and even fewer that deal with evaluating the effectiveness of telephone crisis training. Herein 7 articles are reviewed which deal with volunteer selection and training. These articles demonstrate that no consistent rationale for volunteer selection or training exists. Selection of volunteers typically consists of a gross screening to eliminate any obviously unsuitable persons, with training serving as a further sorting procedure where volunteers who are uncomfortable with the role of a crisis interventionist can be encouraged to drop out. The authors suggest that a training model be built around crisis intervention theory using principles of social learning as the methodology for training.     

Transgression and altruism: A case for hedonism

A model to account for the positive relationship between transgression and altruism was proposed and tested against three alternative formulations—Guilt, Social Justice, and Self-esteem Bolstering. The proposed model, Negative State Relief, asserts that people in a transgression situation behave charitably in order to reduce a general, negative affective state which is induced by exposure to harm-doing and that if the negative state is relieved by some other means, benevolent activity will be rendered unnecessary. All of the experimental subjects were exposed to an act of transgression; half performed the act themselves while half only witnessed it. In one set of experimental conditions (the relief conditions), a positive event—the receipt of either money or approval—was interposed between the harmful act and a fellow-student's request for aid. In another set of experimental conditions (the norelief conditions), no such positive event occurred. It was found, as predicted, that subjects who received a positive event were significantly less helpful than those who did not, but were not different from a control group which had never been exposed to the transgression. It was also found that harm-doers and harm-witnesses were identical in benevolent tendency. The results were interpreted as favoring a hedonistic conception of the nature of altruism. Finally, it was contended that a U-shaped relationship exists between mood state and helping tendency.