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Edward McAuley Susan Wraith Terry E. Duncan 《Journal of applied social psychology》1991,21(2):139-155
A number of investigators have attempted to identify the determinants of continued participation in exercise regimens. Within a social cognitive framework, the present study examined the relationships among self-efficacy cognitions, perceptions of success, and multidimensional intrinsic motivation in the exercise domain. Multivariate analyses of variance indicated that highly efficacious individuals were more intrinsically motivated toward aerobic dance than were their less efficacious counterparts. However, multiple regression analyses revealed both perceptions of success and self-efficacy to account for significant variance in intrinsic motivation at both the composite and dimensional levels. Moreover, perceptions of success were considerably stronger predictors than were efficacy cognitions. The results are discussed in terms of the need for multiple measures of perceived success, the employment of longitudinal designs to determine the direction of causality among these variables, and possible implications for adherence issues. 相似文献
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Duncan Macintosh 《Philosophical Studies》1991,64(3):309-321
For helpful comments, my thanks to Robert Bright, Richmond Campbell, Julia Colterjohn, Peter Danielson, Ish Haji, Keith Lehrer, Robert Martin, Victoria McGeer, Terrence Tomkow and an anonymous referee. I also thank the Canadian S.S.H.R.C. for a Doctoral Fellowship and Dalhousie University for a Killam Post-Doctoral Fellowship. 相似文献
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D F Duncan 《Psychological reports》1991,69(1):239-240
Videocassettes have become the dominant medium for pornography. One previous content analysis examined the prevalence of violence in such videos. The Attorney General's Commission on Pornography (1986) has asserted that nonviolent pornography depicting degradation produces harm similar to that from violent pornography. Content analysis of a 10% random sample (n = 50) of the videos displayed in the "adult" section of a video store showed that 13.6% of the scenes in the videos contained violent acts and 18.2% contained degrading acts. 相似文献
35.
A model of category effects on reports from memory is presented. The model holds that stimuli are represented at 2 levels of detail: a fine-grain value and a category. When memory is inexact but people must report an exact value, they use estimation processes that combine the remembered stimulus value with category information. The proposed estimation processes include truncation at category boundaries and weighting with a central (prototypic) category value. These processes introduce bias in reporting even when memory is unbiased, but nevertheless may improve overall accuracy (by decreasing the variability of reports). Four experiments are presented in which people report the location of a dot in a circle. Subjects spontaneously impose horizontal and vertical boundaries that divide the circle into quadrants. They misplace dots toward a central (prototypic) location in each quadrant, as predicted by the model. The proposed model has broad implications; notably, it has the potential to explain biases of the sort described in psychophysics (contraction bias and the bias captured by Weber's law) as well as symmetries in similarity judgments, without positing distorted representations of physical scales. 相似文献
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Analysis of the elements of attention: A neuropsychological approach 总被引:15,自引:0,他引:15
Allan F. Mirsky Bruno J. Anthony Connie C. Duncan Mary Beth Ahearn Sheppard G. Kellam 《Neuropsychology review》1991,2(2):109-145
A model for conceptualizing the components or elements of attention is presented. The model substitutes for the diffuse and global concept of attention a group of four processes and links them to a putative system of cerebral structures. Data in support of the model are presented; they are derived from neuropsychological test scores obtained from two samples, the first consisting of 203 adult neuropsychiatric patients and normal control subjects, and the second, an epidemiologically-based sample of 435 elementary school children. Principal components analyses of test scores from these two populations yielded similar results: a set of independent elements of attention that are assayed by different tests. This work presents a heuristic for clinical research in which the measurement of attention is essential. 相似文献
37.
Pairs of cartoon episodes which did and did not meet the National Association of Broadcaster's Code for Violence were rated by college students and children on a series of scales to evaluate level of violence and of enjoyment. The results indicated that the Code has been ineffective in reducing levels of rated violence; however, entertainment value has decreased. 相似文献
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