Myerson J  Green L  Morris J 《Journal of the experimental analysis of behavior》2011,95(2):175-187

The present study with college students examined the effect of amount on the discounting of probabilistic monetary rewards. A hyperboloid function accurately described the discounting of hypothetical rewards ranging in amount from $20 to $10,000,000. The degree of discounting increased continuously with amount of probabilistic reward. This effect of amount was not due to changes in the rate parameter of the discounting function, but rather was due to increases in the exponent. These results stand in contrast to those observed with the discounting of delayed monetary rewards, in which the degree of discounting decreases with reward amount due to amount-dependent decreases in the rate parameter. Taken together, this pattern of results suggests that delay and probability discounting reflect different underlying mechanisms. That is, the fact that the exponent in the delay discounting function is independent of amount is consistent with a psychophysical scaling interpretation, whereas the finding that the exponent of the probability-discounting function is amount-dependent is inconsistent with such an interpretation. Instead, the present results are consistent with the idea that the probability-discounting function is itself the product of a value function and a weighting function. This idea was first suggested by Kahneman and Tversky (1979), although their prospect theory does not predict amount effects like those observed. The effect of amount on probability discounting was parsimoniously incorporated into our hyperboloid discounting function by assuming that the exponent was proportional to the amount raised to a power. The amount-dependent exponent of the probability-discounting function may be viewed as reflecting the effect of amount on the weighting of the probability with which the reward will be received.  相似文献   

    

Felix ED  Sharkey JD  Green JG  Furlong MJ  Tanigawa D 《Aggressive behavior》2011,37(3):234-247

Accurate assessment of bullying is essential to intervention planning and evaluation. Limitations to many currently available self-report measures of bullying victimization include a lack of psychometric information, use of the emotionally laden term \"bullying\" in definition-first approaches to self-report surveys, and not assessing all components of the definition of bullying (chronicity, intentionality, and imbalance of power) in behavioral-based self-report methods. To address these limitations, we developed the California Bullying Victimization Scale (CBVS), which is a self-report scale that measures the three-part definition of bullying without the use of the term bully. We examined test-retest reliability and the concurrent and predictive validity of the CBVS across students in Grades 5-12 in four central California schools. Concurrent validity was assessed by comparing the CBVS with a common, definition-based bullying victimization measure. Predictive validity was examined through the co-administration of measures of psychological well-being. Analysis by grade and gender are included. Results support the test-retest reliability of the CBVS over a 2-week period. The CBVS was significantly, positively correlated with another bullying assessment and was related in expected directions to measures of well-being. Implications for differentiating peer victimization and bullying victimization via self-report measures are discussed.  相似文献   

    

Elliott D. Green 《Studies in Ethnicity and Nationalism》2003,3(2):69-70

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Peace Ethic or “Pacifism”?     

Clifford Green 《Modern Theology》2015,31(1):201-208

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R R Saunders  G Green 《Journal of the experimental analysis of behavior》1999,72(1):117-137

Experiments designed to establish stimulus equivalence classes frequently produce differential outcomes that may be attributable to training structure, defined as the order and arrangement of baseline conditional discrimination training trials. Several possible explanations for these differences have been suggested. Here we develop a hypothesis based on an analysis of the simple simultaneous and successive discriminations embedded in conditional discrimination training and testing within each of the training structures that are typically used in stimulus equivalence experiments. Our analysis shows that only the comparison-as-node (many-to-one) structure presents all the simple discriminations in training that are subsequently required for consistently positive outcomes on all tests for the properties of equivalence. The sample-as-node (one-to-many) training structure does not present all the simple discriminations required for positive outcomes on either the symmetry or combined transitivity and symmetry (equivalence) tests. The linear-series training structure presents all the simple discriminations required for consistently positive outcomes on tests for symmetry, but not for symmetry and transitivity combined (equivalence) or transitivity alone. Further, the difference in the number of simple discriminations presented in comparison-as-node training versus the other training structures is larger when the intended class size is greater than three or the number of classes is larger than two. We discuss the relevance of this analysis to interpretations of stimulus equivalence research, as well as some methodological and theoretical implications.  相似文献   

    

Joseph P. Green  Steven Jay Lynn 《Applied cognitive psychology》2005,19(6):679-691

This study compared participants who were administered either a hypnosis (n=50) or a relaxation (n=44) recall priming procedure in terms of the ability to estimate the dates of 20 relatively memorable (‘easy’) vs. less memorable (‘difficult’) international news events. The hypnosis and relaxation groups performed comparably in terms of the accuracy of estimates of when the events occurred, self‐reported confidence in estimates, and the memorability and emotionality of the events that were reported during hypnosis and relaxation. After these initial ratings, participants were informed that ‘at least one’ of their estimates was incorrect, and they were given the opportunity to change their estimates of the date of when one or more of the events occurred. Participants who generated their initial estimates during hypnosis were less likely to change their previous estimates of both easy and difficult events, than were participants in the relaxation condition. The measure of self‐reported confidence and a behavioural measure of willingness to change initial reports were largely dissociated from one another. Copyright © 2005 John Wiley & Sons, Ltd.  相似文献   

    

Adrian J. Hayes MRES  Jenny J. Shaw PhD  Gillian Lever‐Green MSC  Dianne Parker PhD  Linda Gask PhD 《Suicide & life-threatening behavior》2008,38(6):708-713

Suicide prevention training for the prison service in England and Wales has been criticized. STORM is a package emphasizing the practice and review of interactions with suicidal persons and was evaluated in a pilot study for use in prisons. Trainees completed questionnaires immediately before and after training and at 6 to 8 months follow‐up. Training significantly improved attitudes, knowledge, and confidence, and improvements were maintained at follow‐up. Satisfaction with training was very high. STORM was successfully adapted for prison settings, and showed good effects among staff trained. It should be provided to the wider prison estate, with regular refresher training.  相似文献   

    

Yarkoni T  Braver TS  Gray JR  Green L 《Journal of the experimental analysis of behavior》2005,84(3):537-554

Although functional neuroimaging studies of human decision-making processes are increasingly common, most of the research in this area has relied on passive tasks that generate little individual variability. Relatively little attention has been paid to the ability of brain activity to predict overt behavior. Using functional magnetic resonance imaging (fMRI), we investigated the neural mechanisms underlying behavior during a dynamic decision task that required subjects to select smaller, short-term monetary payoffs in order to receive larger, long-term gains. The number of trials over which the longterm gains accrued was manipulated experimentally (2 versus 12). Event-related neural activity in right lateral prefrontal cortex, a region associated with high-level cognitive processing, selectively predicted choice behavior in both conditions, whereas insular cortex responded to fluctuations in amount of reward but did not predict choice behavior. These results demonstrate the utility of a functional neuroimaging approach in behavioral psychology, showing that (a) highly circumscribed brain regions are capable of predicting complex choice behavior, and (b) fMRI has the ability to dissociate the contributions of different neural mechanisms to particular behavioral tasks.  相似文献   

    

Jeffrey D. Green  Brad Pinter  Constantine Sedikides 《European journal of social psychology》2005,35(2):225-235

The mnemic neglect effect is the phenomenon of disproportionately poor recall for threatening (rather than non‐threatening) feedback that refers to the self (rather than another person). Does trait modifiability moderate mnemic neglect? We hypothesized that mnemic neglect will be present for feedback on unmodifiable traits, but absent for feedback on modifiable traits. In the latter case, the feedback would be lower in threat potential because its consequences are fleeting and steps to prevent its reoccurrence are possible. Participants received mixed (threatening and non‐threatening) feedback that referred either to the self or another person. The feedback pertained to (central and peripheral) self‐conceptions that were either unmodifiable or modifiable. In support of the hypothesis, mnemic neglect emerged for feedback on unmodifiable, but not modifiable, traits. The findings illustrate the selective and strategic nature of self‐protection. Copyright © 2004 John Wiley & Sons, Ltd.  相似文献   

  总被引：10，自引：6，他引：4  

Myerson J  Green L 《Journal of the experimental analysis of behavior》1995,64(3):263-276

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