Social-cognitive determinants of physical activity: the influence of social support, self-efficacy, outcome expectations, and self-regulation among participants in a church-based health promotion study.

A social-cognitive model of physical activity was tested, using structural equation analysis of data from 999 adults (21% African American; 66% female; 38% inactive) recruited from 14 southwestern Virginia churches participating in the baseline phase of a health promotion study. Within the model, age, race, social support, self-efficacy, and self-regulation contributed to participants' physical activity levels, but outcome expectations did not. Of the social-cognitive variables, self-regulation exerted the strongest effect on physical activity. Independent of self-regulation, self-efficacy had little effect. Social support influenced physical activity as a direct precursor to self-efficacy and self-regulation. The model provided a good fit to the data and explained 46% of the variance in physical activity among the diverse group of adults.     

Augmenting/reducing assessed by evoked potentials and the Vando scale

College students selected for extreme evoked potential (EP) augmenting and reducing completed the Vando Reducing-Augmenting Scale (RAS). No significant correlation was found between the EP measure and the Vando RAS, although the RAS was related to sensation-seeking. Researchers are advised that the EP and RAS measures are not comparable.     

The relation between recognition memory and classification learning

Two experiments investigated the relation between recognition memory and classification learning. The subjects were instructed that they would see a series of random-dot patterns and later would be asked to classify or to recognize the patterns. Following study, the subjects performed a classification task, a recognition-memory task, or both. It was found that classification-learning instructions were superior to recognition-memory instructions for the classification task, but that there was little or no effect of instructions on the recognition task. When subjects performed both recognition and classification tasks, there was no relation between saying “old” to a probe and correctly classifying it, except with old exemplars, and then only when the initial instructions had been to expect a recognition-memory test. Overall, the data show that classification and recognition can be experimentally separated. In addition, classification is often statistically independent of recognizing that items are old. These observed relations provide some constraints for the further development of models of classification learning and recognition memory.     

Social reinforcement: A treatment component in verbal self-instructional training

This study investigated the effects of noncontingent social reinforcement on social and academic behaviors in grade school children. Twenty-four children in the second through fifth grades were selected on the basis of teacher ratings of disruptive behavior. Subjects were divided into (a) a high social reinforcement verbal self-instructional (VSI) training group, (b) a low social reinforcement VSI group, and (c) a no-contact control group. Children in VSI groups were removed from their classrooms during four 40-minute periods and given VSI training. Significant between-groups differences on measures of social reinforcement were found indicating its successful manipulation. While none of the dependent measures indicated significant differences between experimental groups, a consistent pattern of difference scores emerged giving limited support to the hypothesis that noncontingent social reinforcement contributed to behavioral gains. Results are discussed in terms of the need for future research on the effects of rapport on treatment outcome.Both authors wish to express their thanks to the Missoula public school administration, principals, psychologists, and teachers. Appreciation is also due to Matthew Firpo and Anita Fisher for their help in this project.     

The experiential loci and sensory qualities of various emotions

Sixty-nine university students were asked to describe the sensations and to identify the loci of those sensations for 34 emotions. The methods of reporting were introspection, retrospection, and recollection. There was no evidence that any method was consistently better than the others. Also, there was no evidence that the reports given were the result of social or linguistic convention rather than reports of actual sensory experience. Cochran's Q test showed that, within each emotion, the kinds of loci cited differed significantly, and that for all but one locus, the frequencies for the emotions differed significantly. Principal component analysis showed six locus factors clustered on stomach, face, head, heart, hands-heart, and eyes. Although not distinctive for all emotions, there were characteristic patterns of sensory loci and sensory qualities as shown by high frequencies of citation. It is suggested that these loci and qualities are one of several components of experienced emotion. The results are seen as supporting subjective or phenomenological studies of emotion, and are discussed with special reference to facial feedback theories of emotion.This research was supported, in part, by a grant from the President's Research Fund of Simon Fraser University.     

Cross-examination of the expert witness: Do hostile tactics affect impressions of a simulated jury?

Ninety-one introductory psychology students viewed a videotape of a simulated personal damage trial in which a psychologist expert witness testified about a plaintiff's psychological problems resulting from trauma. The defense attorney's cross-examination tactics, employed against the expert witness, were varied in the videotape. A 2 × 2 factorial design was used, with leading versus nonleading questions and a hostile versus nonhostile attorney. An interaction effect was obtained, in which a hostile attorney using leading questions and a nonhostile attorney using nonleading questions were perceived as least effective.     

Predicting sales skills

The purpose of this study was to validate a selection process designed to predict sales skills for a telephone sales job. First, a job analysis was performed (n=213) to identify the major functions and behavioral requirements of the job. Next, the test, a situational judgment inventory, was developed, and a concurrent criterion related validation study was completed (n=236). The criterion measures were supervisory ratings of performance. Validity coefficients ranged from r=.16 (p<.01) to r=.24 (p<.001). In conclusion, the situational judgment inventory was found an effective vehicle for measuring telephone sales skills.Sincere thanks to Roz Lobus for her assistance in the earlier phases of this study.     

Covariance structure analysis in experimental research: Comparing two word translation models

Covariance structure analysis is a statistical technique in which a theoretical model, or a covariance structure, is constructed, and the covariances predicted by the theoretical model are compared with those of the observed data. The adequacy of the model in reproducing the sample covariances is reflected by estimates of the parameters of the model and measures indicating the goodness of fit. Covariance structure analysis is frequently used for analyzing data obtained in nonexperimental or quasiexperimental research, but is seldom employed in experimental research. In this paper, the applicability of this technique in experimental research is discussed and illustrated by covariance structure analysis studies in which two models for word translation—the symmetrical model and the asymmetrical model—are described, refined, and contrasted.