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Many studies have shown that the most people are willing to pay to obtain an object often is significantly less than the least they will accept to relinquish the object (i.e., selling prices tend to be higher than buying prices). Most tests of the buying/selling price discrepancy have elicited values either for everyday market items (e.g., mugs, candy bars) or for environmental changes (e.g., a decrease in air quality, a landfill clean-up). The literature indicates a possible interaction between buying/selling prices and commodity type; buying/selling price differences seem greater for environmental improvements than for market items. In other words, people show more relative preference for environmental improvements in selling modes than they do in buying modes. A significant difference in preference due to elicitation mode is commonly termed a "preference reversal." The four experiments presented here establish this new preference reversal and examine the reasons for it. The results from these studies provide information about the nature of preference reversals, the valuation process as a whole, and the unique problem of valuing complex and risky items such as environmental changes. 相似文献
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In a series of experiments, we investigated the effect of pun humor on memory. In all experiments, the participants were exposed to knock-knock jokes in either the original form retaining the pun or in a modified form that removed the pun. In Experiment 1, the authors found that pun humor improved both recall and recognition memory following incidental encoding. In Experiment 2, they found evidence that rehearsal is not the cause of the humor effect on memory. In Experiments 3 and 4, the authors found that the constraints imposed by puns and incongruity may account for the humor effects observed. Puns constrain and limit the information that can fit in the final line of a joke and thus make recall easier. 相似文献
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Stimulus Fading and Response Elaboration in Differential Reinforcement for Alternative Behavior
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Kevin J. Schlichenmeyer William V. Dube Mariela Vargas‐Irwin 《Behavioral Interventions》2015,30(1):51-64
A hallmark of applied behavior analysis is the development of function‐based interventions for problem behavior. A widely recommended function‐based intervention is differential reinforcement of alternative behavior (DRA), in which reinforcement is contingent upon socially acceptable alternatives to problem behavior (e.g., teaching communication skills). Typically, DRA is introduced under rich schedules of reinforcement. Although effective for initiating behavior change, rich schedules are often impractical in the natural setting. In this study, we evaluated the extent to which a stimulus fading program could be employed to elaborate alternative behavior (mands) in two individuals diagnosed with an autism spectrum disorder. For both participants, problem behavior was reduced substantially upon implementation of the DRA procedure. Further, problem behavior rates remained low and mand rates decreased to more practical levels as the DRA behavioral requirements increased during the fading program. The fading approach demonstrated in this paper may be a useful component of intervention packages for clinicians. Copyright © 2015 John Wiley & Sons, Ltd. 相似文献
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