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791.
792.
Timothy R. Vollmer Henry S. Roane Joel E. Ringdahl Bethany A. Marcus 《Journal of applied behavior analysis》1999,32(1):9-23
In prior research, differential reinforcement of alternative behavior (DRA) has been implemented at optimal treatment values: Problem behavior is never reinforced, and alternative behavior is always reinforced. However, in application, DRA is unlikely to be conducted optimally. In this study, following a functional analysis phase and a differential reinforcement at full implementation phase, we challenged initially positive treatment effects for 3 participants by implementing DRA at less than optimal parameters. For example, some occurrences of problem behavior were reinforced, and some occurrences of alternative behavior were not reinforced. Results suggested that when exposed to DRA at full implementation, participants showed a bias toward appropriate behavior in subsequent conditions during which “mistakes” (treatment challenges) were intentionally introduced. In addition, the negative effects of treatment challenges were quickly reversible, in comparison to the positive effects of DRA, which were not quickly reversible in the face of treatment challenges. 相似文献
793.
William S. Helton William N. Dember Joel S. Warm Gerald Matthews 《Current psychology (New Brunswick, N.J.)》1999,18(4):311-325
Following the logic of a prior experiment (Seligman et al., 1990) with varsity collegiate swimmers, sixty student volunteers
performed a brief, but highly stressful vigilance task. Half were then given false feedback indicating poor performance; the
others experienced a non-evaluative display at that point. All were then asked to repeat the vigil. Half the observers were
assessed as high optimists and half as high pessimists. The pessimists showed a steeper vigilance decrement than the optimists,
consistent with a model (Scheier and Carver, 1987) that proposes that pessimists are more emotion-focused under stress than
optimists, and hence would be less attentive to the vigilance display, regardless of feedback condition. The false negative
feedback actually turned out to be ineffective; hence, based on Seligman's account of the swimmer study, which requires effective
negative feedback, there should have been no vigilance performance difference between optimists and pessimists, either pre-
or post-feedback. 相似文献
794.
Burckle Michelle A. Ryckman Richard M. Gold Joel A. Thornton Bill Audesse Roberta J. 《Sex roles》1999,40(11-12):853-870
The primary focus in this study was anexamination of the differential contributions of twodifferent forms of competitive attitude to disorderedeating in a nonclinical sample of Caucasian universitywomen. The results showed that it is not competitionper se that is a primary contributor to eatingdisorders, but rather a particular form of competitiveattitude. Specifically, hypercompetitiveness was related strongly to eating disorder symptoms, butpersonal development competitiveness was unrelated. Asecond purpose considered the relationship ofcontext-specific measures of achievement to eatingdisorder symptoms. Disordered eating was associatedpositively with the need to achieve in appearance, butnot to a need to achieve in academics and career.Discussion centered on the potential usefulness of these findings in the treatment of women who areeating disordered. It also argued for changes in asocialization process which often leads to thedevelopment of hypercompetitive attitudes and anovervaluing of beauty in American women. 相似文献
795.
Cynthia A. Laurie Joel S. Warm William N. Dember Robert A. Frank 《Attention, perception & psychophysics》1994,55(4):394-398
The present study constituted an initial experimental effort to examine the fragmentation characteristics of subjective contours within the photopic and upper 5cotopic ranges of illumination. Four stimulus factors known to influence the visibility of subjective contours—target luminance, inducing area size and contrast, and contour orientation—were examined. Results indicated that subjective contours are indeed unstable perceptual phenomena. On the average, fragmentation or fading occurred after only 15 sec of observation, and some farm of stimulus outage was present for 28% of the viewing time of each stimulus. Fragmentation latency was significantly shorter and total time in fragmentation longer for diamond than for square contours, and total time in fragmentation varied inversely with inducing-area size. Fragmentation tendedto occur in whole units rather than in isolated elements, a result reminiscent of the fading of real Contours under impoverished viewing conditions. 相似文献
796.
Joel R. Wagaman Raymond G. Meltenberger Richard E. Arndorfer 《Journal of applied behavior analysis》1993,26(1):53-61
We investigated the effectiveness of a simplified program for the treatment of stuttering in children. The simplified treatment included awareness training, in which the subjects learned to detect every occurrence of stuttering; training a response incompatible with stuttering, which involved relaxation and regulation of air flow over the larynx when speaking; and social support, which involved parent-delivered prompts and praise of children's use of the techniques in everyday environments. Eight children were treated in their homes with the simplified treatment, in a multiple baseline across subjects design, and all reached the criterion level of less than 3% words stuttered. In addition, the reduction in stuttering generalized to the school setting and was maintained at posttreatment (10 to 13 months). The subjects' rates of speech remained stable throughout baseline and treatment. Pretreatment and posttreatment ratings by the parents showed that they found treatment to be both acceptable and credible. Finally, social validity measures revealed a noticeable improvement in the subjects' speech to parents and speech pathologists. 相似文献
797.
Task-Intrinsic and Social-Extrinsic Sources of Arousal for Motives Assessed in Fantasy and Self-Report 总被引:1,自引:0,他引:1
ABSTRACT A review of the literature on individual differences in motive dispositions points toward the importance of distinguishing between motives as assessed in fantasy and self-report. We proposed that these two modes of assessment have identified independent motivational systems that influence behavior in different ways. Two experiments were designed to show that the two kinds of motives are unrelated to one another and are aroused by different factors in a performance situation. It was hypothesized that motives as assessed from fantasy (seen as implicit needs) are primarily aroused by factors intrinsic to the process of performing an activity, whereas motives obtained through self-report inventories (seen as self-attributed needs) are aroused by social factors that are extrinsic to the process of performing an activity (e.g., the way in which a task is presented by an experimenter). In the first experiment, performance on a memory task was shown to depend on the interaction of subjects' self-reported motive for achievement with achievement-arousing instructions, whereas performance on a word-finding puzzle depended on the interaction of subjects' fantasy need for achievement with the puzzle's level of intrinsic challenge. A second experiment generalized these findings to the power domain. 相似文献
798.
Joel A. Capellan Jason Silva Colleen Mills Margaret Schmuhl 《Journal of Investigative Psychology & Offender Profiling》2023,20(1):80-96
This study provides an in-depth analysis of American mass public shooting conclusions between 1966 and 2017. Specifically, this work examines differences in factors contributing to the perpetrator's likelihood of surviving, being killed, and committing suicide. Ten hypotheses, rooted in previous homicide, suicide, homicide-suicide, and mass public shooting literature consider different psychological, situational, and background factors shaping the outcome of mass public shootings. Significant findings indicate factors influencing perpetrators' suicide include suicidal ideation, higher victim counts, and suicide copycat effects. Factors influencing perpetrators being killed similarly include higher victim counts, the arrival of law enforcement, lethal/non-lethal resistance, and government targets. This investigation provides practical implications for practitioners and policymakers, especially law enforcement and mental health practitioners, seeking to develop intervention and prevention strategies for addressing suicidal ideation and its most lethal outcome: mass public shootings. 相似文献
799.
The present study examines exchange and creditor ideologies (two dispositional characteristics that are strongly related to exchange relationships) and their moderating effects on the psychological contract. Five hundred public-sector employees were studied over a 3-year period. Respondents’ were surveyed as to their perceptions of what they believed their employer owed them (e.g., job security, training, involvement in decision making, etc.) and the extent to which these “employer obligations” had been met. In addition, we assessed respondents’ perceptions of their own obligations to their employer (e.g., agreeing to work extra hours, volunteering for non-job-related activities, working unpaid hours, etc.) and the extent to which they believed that these “employee obligations” had been fulfilled. The results indicate that creditor ideology related positively to employee perceptions of their obligations to the employer and the extent to which they fulfilled those obligations while exchange ideology related negatively to employee obligations and fulfillment of obligations. Exchange ideology moderated the effects of perceived employer obligations on employee obligations and fulfillment of obligations while creditor ideology moderated the relationship between perceived employer fulfillment of obligations and employee obligations. This article provides preliminary evidence to the benefits of examining the role of individual dispositions in psychological contract research—a previously neglected topic—and discusses the potential implications for the practice of management. 相似文献
800.