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851.
Louis P. Hagopian Wayne W. Fisher Steven M. Legacy 《Journal of applied behavior analysis》1994,27(2):317-325
Noncontingent reinforcement (NCR), a response-independent schedule for the delivery of reinforcement, has been found to be effective in reducing behavior when the reinforcer delivered is responsible for behavioral maintenance. In this study, dense and lean schedules of response-independent attention were compared to determine whether it is necessary to begin with a dense schedule before fading to a lean schedule, or whether treatment would be as effective using a lean schedule at the outset. The subjects were 5-year-old identical quadruplets diagnosed with mental retardation and pervasive developmental disorder who displayed destructive behavior that was maintained by social attention. NCR was selected partially because it is not very labor intensive and could be implemented by a single mother simultaneously with all 4 children. Using a combination multielement and multiple baseline design, it was found that (a) a dense schedule of response-independent reinforcement (i.e., fixed-time 10 s) resulted in immediate and dramatic reductions in destructive behavior with no evidence of an extinction burst, and (b) an equivalent reduction in destructive behavior was achieved with a lean schedule of response-independent reinforcement (fixed-time 5 min) only after a systematic fading procedure was implemented. The findings suggest that the effectiveness of NCR may be dependent on the use of a dense schedule initially, and that systematic fading can increase the effectiveness of a lean schedule. 相似文献
852.
Third parties in dispute settings often make predictions to disputants regarding the likely outcome of their dispute at arbitration. However, virtually no research has examined the impact of predictions on disputant satisfaction with dispute resolution procedures and outcomes. One explanation for the lack of attention to this variable may be that current theorizing regarding dispute resolution procedures is too narrowly stated to incorporate this procedural variation. Theories about predictability from nondispute settings are used to generate hypotheses regarding the consequences of such outcome prediction. In a laboratory setting, disputants prepared arguments in anticipation of an arbitration hearing. Prior to the arbitrator's decision, the experimenter read the disputants' arguments and made a prediction regarding the arbitrator's decision. Their arguments were then presented to an arbitrator who imposed a binding decision. Dependent measures include the disputants' anxiety while awaiting the arbitrator's decision, and their postdecision satisfaction with dispute resolution procedures and outcomes. Internal analyses support the hypothesis that outcome prediction has benefits for disputants' predecision coping, ratings of procedural fairness, and satisfaction judgments. Also, as hypothesized, correct predictions produced greater postdecision satisfaction with outcomes and decision-makers than did incorrect predictions. 相似文献
853.
854.
The effects of list composition and word frequency on cued recall, associative recognition, and item recognition were examined in three experiments For pure-frequency lists, cued recall and associative recognition show better performance on common high-frequency (HF) words than on rare low-frequency (LF) words. Item recognition, however, shows an advantage for LF words. In mixed lists, consisting of half HF and half LF words, the HF advantage in cued recall disappeared; however, the word frequency effects in item and associative recognition were unchanged. These results are inconsistent with explanations based on differential attention or co-rehearsal of KF and LF words. However, the results are consistent with list strength results which show that recognition is insensitive to strength-based list composition, but that recall is sensitive to list composition. 相似文献
855.
William Langston Clark Ohnesorge Peter Kruley Steven J. Haase 《Psychonomic bulletin & review》1994,1(2):258-263
Two experiments were conducted to probe for performance differences between early-semester subjects and late-semester subjects in an introductory psychology subject pool. In Experiment 1A, hypotheses regarding changes in performance included differential effort, changes in subjects’ attention to the task, and changes in subjects’ sensitivity. A signal detection paradigm was used, and 278 subjects were sampled over the course of the semester. No evidence of changes in subject performance was found, in spite of sufficient power to detect relevant patterns of change. The results of a replication (N = 135) were consistent with those of Experiment 1A. Experiment 2 (N = 118) employed a text comprehension task to examine possible differences in subject performance with a more cognitive task. Again, there was no evidence to support the idea that late-semester subjects were performing differently from early-semester subjects. 相似文献
856.
Steven M. Tovian Ph.D. Ronald H. Rozensky Tracy B. Sloan Gary M. Slotnick 《Journal of clinical psychology in medical settings》1994,1(4):339-361
Urinary incontinence (UI) is a disorder receiving little attention from clinical health psychologists. This paper establishes the importance of addressing the issue of UI within the clinical and research practices of clinical health psychologists. Over 10 million Americans suffer from loss of bladder control. Incontinence affects over half of older individuals in long-term care institutions, about one-third of hospitalized elderly, and up to 30% of Americans over the age of 60 living at home. Because of social stigma and misconceptions attached to urinary incontinence, it is estimated that less than half of those affected see a physician about their condition. Since UI is generally associated with medical, social, psychological, and economic consequences, a multidisciplinary perspective is important because these factors are integral in the selection of appropriate treatment. Definitions of UI, its incidence and costs, and brief reviews of treatment and management techniques are presented. Psychological sequelae and treatments are presented as a foundation for developing further treatment and research approaches. Guidelines for collaboration and consultation by clinical health psychologists with medical professionals in the area of UI are also discussed. 相似文献
857.
Previous work has shown that abrupt visual onsets capture attention. This occurs even with stimuli that are equiluminant with the background, which suggests that the appearance of a new perceptual object, not merely a change in luminance, captures attention. Three experiments are reported in which this work was extended by investigating the possible role of visual motion in attentional capture. Experiment 1 revealed that motion can efficiently guide attention when it is perfectly informative about the location of a visual search target, but that it does not draw attention when it does not predict the target’s position. This result was obtained with several forms of motion, including oscillation, looming, and nearby moving contours. To account for these and other results, we tested anew-object account of attentional capture in Experiment 2 by using a global/local paradigm. When motion segregated a local letter from its perceptual group, the local letter captured attention as indexed by an effect on latency of response to the task-relevant global configuration. Experiment 3 ruled out the possibility that the motion in Experiment 2 captured attention merely by increasing the salience of the moving object. We argue instead that when motion segregates a perceptual element from a perceptual group, a new perceptual object is created, and this event captures attention. Together, the results suggest that motion as such does not capture attention but that the appearance of a new perceptual object does. 相似文献
858.
This study investigated the hypothesis that time perspective is a component in vocational maturity and career decision making. Ninety-seven college freshmen responded to two measures of time perspective and seven measures selected to represent attitudinal vocational maturity, cognitive vocational maturity, and career decision making. The nine variables were intercorrelated and the resulting matrix was subjected to alpha factor analysis. Three factors were extracted and titled Attitudinal Vocational Maturity, Cognitive Vocational Maturity, and Career Decision Making. As predicted, time perspective was a component in the Attitudinal Vocational Maturity and Career Decision-Making factors. The results supported the hypothesis and specifically linked time perspective to planfulness and degree of indecision. 相似文献
859.
Steven Beck Lynn Collins James Overholser Karen Terry 《Journal of abnormal child psychology》1984,12(4):573-580
In a study examining children's social competence in elementary school settings, the authors had the opportunity to compare children who received parental permission to participate to children who did not receive permission. Results indicated that children who were not involved in the study were more likely to be viewed by teachers as having unsatisfactory relationships with peers than children who were in the study. The present results suggest that investigators begin reporting the number of children who do not participate in a given study and begin examining whether minors who receive parental permission differ on important dimensions from minors who do not receive such permission. Ethical considerations of the present study are discussed. 相似文献
860.