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元认知监控是元认知的核心成分,而且是内隐程度较高的心理活动。研究采用认知操作法,对经典的Mastermind游戏任务加以改编,结合访谈分析,探讨了适合考察元认知监控的任务难度和有效的元认知监控指标。研究结果发现:(1)对于大学生来说,在游戏4(要求从六种颜色中选出四种正确的颜色,且排列位置也要正确)中当知觉难度最大且又可以经过努力选择策略、根据反馈进行有效选择时,才会在最大程度上激发元认知监控,使得游戏成绩提高;(2)“监测时间”是元认知监测的有效测量指标,而“违背反馈次数”是元认知控制的有效测量指标。 相似文献
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We extended the use of operant procedures to decrease immediate echolalia and increase the appropriate responding to questions of a 21-year-old autistic man. Three experiments were conducted in which the overall plan was to (a) encourage the subject to remain quiet before, during, and after the presentation of questions and (b) teach him to use environmental cues (i.e., word cards or a model's responses) to increase the likelihood of responding correctly. Multiple baseline designs demonstrated that echolalia was rapidly replaced with correct stimulus-specific responses. In addition, there were a variety of generalized improvements in the subject's verbal responses to questions. The procedures and results are contrasted to previous research in an attempt to explain the encouraging findings. 相似文献
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Jennifer J. McComas David P. Wacker Linda J. Cooper Jennifer M. Asmus David Richman Beth Stoner 《Journal of applied behavior analysis》1996,29(3):397-401
Brief multielement designs were used to examine the effects of specific instructional strategies on accuracy of academic performance during outpatient evaluations of 4 children with learning disorders. Instructional strategies that improved accuracy on academic tasks were identified for all participants. These results suggest that the application of experimental analysis methodologies to instructional variables may facilitate the identification of stimulus prompts that are associated with enhanced academic performance. 相似文献
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The effects of using picture prompts on the acquisition, generalization, and maintenance of complex vocational tasks were evaluated within a multiple baseline design across subjects and tasks. Five moderately and severely mentally retarded adolescents were first trained to use picture prompts to guide their performance on one or more complex tasks. Following training, posttesting with and without the picture prompts was conducted to evaluate the effects of training and to determine maintenance effects over a 2- to 4-week interval. Generalization of performance across tasks was assessed with three of the students who were provided novel tasks (with and without picture prompts) without training. Results indicated that picture prompts can be successfully used to promote both acquisition and generalization of performance, and that subsequent training time on a novel task was reduced when the use of picture prompts had been previously trained. 相似文献
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Senior drivers are vulnerable to automobile crashes and subsequent injury and death. Safety belts reduce health risks associated with auto crashes. Therefore, it is important to encourage senior drivers to wear safety belts while driving. Using an AB design, replicated five times, we evaluated the short- and long-term effects of a sign with the message "BUCKLE UP, STAY SAFE" attached to a stop sign at the exits of five different senior communities. Safety belt use was stable during two pretreatment assessments averaged across the five sites and 250 drivers (72% and 68% usage), but significantly increased following installation of these signs (94% usage). Six months after installation of the signs, the effect persisted (88% usage). Use of such signs may be a cost-effective way of promoting safety belt use. 相似文献
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This study replicates and extends the work of Watson (1996) in which a sign eliminated graffiti when posted on bathroom walls. The present study investigated the effects of three different signs on walls in six men's bathrooms located on a university campus. Posting the signs was followed by the elimination or sharp reduction of graffiti. Removal of the signs was followed by a resurgence of graffiti. 相似文献
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Van Houten R Malenfant JE Zhao N Ko B Van Houten J 《Journal of applied behavior analysis》2005,38(3):289-301
The Florida Department of Transportation used a series of changeable-message signs that functioned as freeway guide signs to divert traffic to Universal Theme Park via one of two eastbound exits based on traffic congestion at the first of the two exits. An examination of crashes along the entire route indicated a statistically significant increase in crashes at the first eastbound exit following the actuation of the system. Furthermore, all of the crashes occurred in close proximity to the exit gore (the crosshatched area at exits that drivers are not supposed to enter or traverse) at the first exit. In Experiment 1, behavioral data were collected using an alternating treatments design. These data revealed that reassigning the exit signs was effective in producing a change in the percentage of drivers using each of the two exits. These data also showed that the reassignment of the theme park exit was associated with an increase in the percentage of motor vehicle conflicts that consisted of vehicles cutting across the exit gore. An analysis revealed that the method used for switching the designated or active theme park exit on the series of changeable-message signs led to the presentation of conflicting messages to some motorists, thus resulting in erratic driving behavior (cutting across the exit gore). In Experiment 2, the treatment evaluated the use of a phased method of switching the designated theme park exit to eliminate the delivery of conflicting messages. The new method for switching the designated theme park exit was not associated with an increase in motorists cutting across the exit gore. 相似文献