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911.
Rand JF 《Journal of the experimental analysis of behavior》1977,27(1):103-117
Key pecking of pigeons was reinforced with food in the presence of a horizontal line and never reinforced in the presence of a vertical line. Highly stereotyped behaviors, as well as key pecking, were observed and recorded in the presence of both stimuli. Results showed that a high proportion of time spent in the presence of the horizontal line was occupied by key pecking, a high proportion of time in the presence of the vertical line was occupied by stereotyped nonkey-pecking behaviors, and intermediate proportions of time spent in the presence of intermediate stimuli were occupied by each class of behavior during generalization tests. Similar running rates (number of key pecks divided by observed key-pecking time) were obtained in the presence of all stimuli, indicating that changes in time rather than tempo accounted for the changes in overall rates of key pecking. An exception occurred in responding to the horizontal line as differential performance was developing. In addition to an increase in time spent key pecking, increased running rates occurred in seven of eight birds, suggesting that both time allocation and tempo play a role in behavioral contrast of overall rates of key pecking. 相似文献
912.
Ron Van Houten Saul Axelrod Jon S. Bailey Judith E. Favell Richard M. Foxx Brian A. Iwata O. Ivar Lovaas 《Journal of applied behavior analysis》1988,21(4):381-384
We propose that individuals who are recipients or potential recipients of treatment designed to change their behavior have the right to a therapeutic environment, services whose overriding goal is personal welfare, treatment by a competent behavior analyst, programs that teach functional skills, behavioral assessment and ongoing evaluation, and the most effective treatment procedures available. 相似文献
913.
We develop and discuss four criteria for evaluating the appropriateness of units of analysis for task-analytic research and suggest potential alternatives to the units of analysis currently used. Of the six solutions discussed, the most commonly used unit of analysis in current behavior analytic work, percentage correct, meets only one of the four criteria. Five alternative units of analysis are presented and evaluated: (a) percentage of opportunities to perform meeting criterion, (b) trials to criteria, (c) cumulative competent performances, (d) percentage correct with competent performance coded, and (e) percentage correct with competent performance coded and a grid showing performance on individual steps of the task analysis. Of the solutions evaluated, only one—percentage correct with competent performance coded and a task analysis grid—met all four criteria. 相似文献
914.
Stephen N. Haynes 《Journal of psychopathology and behavioral assessment》1988,10(2):171-183
The relationship between causal models in behavior therapy and strategies for designing intervention programs on the basis of assessment data is considered. The evolution away from simple univariate causal models is noted and complex causal models for behavior disorders are stressed. However, complex causal models currently preclude empirically based functional analytic and keystone target behavior assessment strategies for intervention design. Future directions for intervention design involving a combination of diagnostic, functional, analytic, and keystone strategies and markers for causal paths are discussed. 相似文献
915.
916.
The patient scheduling system in a pediatric outpatient clinic was changed from time-based to problem-based in an A-B-A-B reversal design. During baseline, time-based scheduling was in effect with patients being scheduled in 15-min periods regardless of presenting problem. During intervention, a receptionist matched client problems with time slots so that a more extensive treatment was allocated more time. Problem-based scheduling resulted in a substantial decrease in mean number of minutes spent in clinic across all presenting problems. Waiting time increased to baseline levels when problem-based scheduling was removed and decreased again on reintroduction of the program. A follow-up check conducted 1 month after the end of the second intervention phase revealed that the effects were maintained. The problem-based schedule also resulted in an increase in the proportion of extra time that medical staff had available and produced a positive consumer response. 相似文献
917.
Robert M. Schwartz Gregory L. Garamoni 《Journal of psychopathology and behavioral assessment》1986,8(3):185-197
Clarifying methodological and assessment issues is fundamental to the further development of cognitive-behavioral approaches. The present work examines potential method confounds in several cognitive assessment techniques (e.g., self-statement inventories, postperformance videotape reconstruction) in light of social psychological research on objective self-awareness. On the basis of this analysis, a conceptual framework is proposed to organize research on the assessment of clinical cognition. 相似文献
918.
Louis D. Burgio Kathryn L. Burgio Bernard T. Engel Lori M. Tice 《Journal of applied behavior analysis》1986,19(4):357-366
We tested the effectiveness of a prompt-and-praise procedure for increasing walking distance and independence in eight nursing home residents. Walking distance and method of ambulation were observed just prior to mealtimes; in addition, mobility and social interaction were time-sampled in the living areas throughout the day. Treatment was lagged in a multiple baseline design across lunch and dinner meals within subjects, and across subjects within each of three units. In the mealtime setting, two subjects began walking the maximum scored distance during baseline; the other six subjects showed a marked increase in walking beginning with the first meal in which the intervention was applied. Six of the eight subjects also progressed to more independent means of ambulation. Generalization of walking to the second meal was observed in all four of the subjects in whom this could be assessed. Generalization across subjects was not observed nor was generalization to the living areas. Staff successfully implemented the procedures in the mealtime settings and the effects were maintained at the 4-month follow-up. 相似文献
919.
Dougan JD McSweeney FK Farmer-Dougan VA 《Journal of the experimental analysis of behavior》1986,46(2):185-197
Three experiments examined the effects of opportunities for an alternative response (drinking) on positive behavioral contrast of rats' food-reinforced bar pressing. In both Experiments 1 and 2 the baseline multiple variable-interval schedules were rich (variable interval 10-s), and contrast was examined both with and without a water bottle present. In Experiment 1, the rats were not water deprived. When one component of the multiple schedule was changed to extinction, the rate of bar pressing increased in the constant component (positive behavioral contrast). The magnitude of contrast was larger when the bottle was absent than when it was present, as predicted by the matching law. Drinking did not shift from the constant variable-interval component to the extinction component, as might have been expected from competition theory. In Experiment 2, the rats were water deprived. Contrast was larger when the bottle was present than when it was absent, and drinking did shift to the extinction component, as predicted by competition theory. In Experiment 3, water-deprived rats responded on leaner multiple variable-interval schedules (60-s) in the presence of a water bottle. When one component was changed to extinction, contrast did not occur, and drinking did not shift to the extinction component. The present results suggest that there are at least two different sources of behavioral contrast: “competitive” contrast, observed when an alternative response occurs with high probability, and “noncompetitive” contrast, observed when an alternative response occurs with low probability. The results, in conjunction with earlier studies, also suggest that the form of the alternative response and the rate of food reinforcement provided by the multiple schedule combine to determine the amount of contrast. 相似文献
920.
Tim Wysocki Genae Hall Brian Iwata Mary Riordan 《Journal of applied behavior analysis》1979,12(1):55-64
Behavioral contracting was used to encourage physical exercise among college students in a multiple-baseline design. Subjects deposited items of personal value with the experimenters, which they could earn back on fulfillment of two types of contract contingencies. Subjects selected weekly aerobic point criteria, which they could fulfill by exercising in the presence of other subjects. In addition, subjects contracted to observe and record the exercise of other subjects and to perform an independent reliability observation once each week, with both of these activities monitored by the experimenters. Results indicated that the contract contingencies produced increases in the number of aerobic points earned per week for seven of eight subjects, that the aerobic point system possesses several advantages as a dependent variable for behavioral research on exercise, and that inexperienced observers could be quickly trained to observe exercise behavior and to translate those observations into their aerobic point equivalents. Finally, in a followup questionnaire completed 12 months after the end of the study, seven of the eight subjects reported that they were earning more aerobic points per week than had been the case during the baseline condition of this experiment. 相似文献