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排序方式： 共有251条查询结果，搜索用时 15 毫秒
21.
AbstractObjective: We tested a novel intervention for reducing demand for ineffective health remedies. The intervention aimed to empower participants to overcome the illusion of causality, which otherwise drives erroneous perceptions regarding remedy efficacy.Design: A laboratory experiment adopted a between-participants design with six conditions that varied the amount of information available to participants (N?=?245). The control condition received a basic refutation of multivitamin efficacy, whereas the principal intervention condition received a full contingency table specifying the number of people reporting a benefit vs. no benefit from both the product and placebo, plus an alternate causal explanation for inefficacy over placebo.Main outcome measures: We measured participants’ willingness to pay (WTP) for multivitamin products using two incentivized experimental auctions. General attitudes towards health supplements were assessed as a moderator of WTP. We tested generalisation using ratings of the importance of clinical-trial results for making future health purchases.Results: Our principal intervention significantly reduced participants’ WTP for multivitamins (by 23%) and increased their recognition of the importance of clinical-trial results.Conclusion: We found evidence that communicating a simplified full-contingency table and an alternate causal explanation may help reduce demand for ineffective health remedies by countering the illusion of causality. 相似文献
22.
E. Beard P. Aveyard A. McNeill S. Michie J.A. Fidler J. Brown 《Psychology & health》2013,28(9):1118-1133
Objectives: Use of nicotine replacement therapy (NRT) for smoking reduction (SR) is linked to higher quit attempt rates than SR without NRT. This study aimed to assess the possible mediating roles of confidence in ability to quit, enjoyment of smoking and motivation to quit in this association. Design: Cross-sectional survey. Main outcome measures: Smokers were asked if they were currently attempting SR, and if they were, whether they were using NRT. Motivation to stop, enjoyment of smoking, confidence in ability to stop, and previous quit attempts, were also assessed. Results: There was no evidence that confidence in ability to quit or enjoyment of smoking mediated the association between the use of NRT for SR and attempts to quit. Only motivation to stop partially mediated between the use of NRT for SR and attempts to stop (indirect effect: odds ratio 1.08, p?<?0.001). Conclusion: Although this study is limited by its cross-sectional design, the findings point towards the possibility that the use of NRT to aid SR may promote attempts to stop through increasing motivation to quit but not by increasing confidence or by reducing enjoyment of smoking. Longitudinal studies are required to draw firmer conclusions about the possible mediating effects of motivation to quit. 相似文献
23.
This study examined academic dishonesty (AD) of 586 Taiwanese graduate students, the relationship between students' AD and their perceptions of AD of their peers, and their judgments regarding the seriousness of AD. Results showed that female students were more critical of AD than their male counterparts were in the areas of fraudulence, plagiarism, and falsification. Male students demonstrated more awareness of peer involvement in AD in the area of falsification than did female students. Master's students confessed to greater involvement in AD compared with the PhD students. Doctoral students were more judgmental with respect to unethical acts of fraudulence, plagiarism, and falsification. 相似文献
24.
Marai L Kewibu V Kinkin E Peter Peniop J Salini C Kofana G 《International journal of psychology》2010,45(5):350-359
This paper explores the impact of remuneration differences on workers in the Solomon Islands and Papua New Guinea. In these countries remunerative differences are linked to government policy (in Papua New Guinea) and job contracts (in the Solomon Islands), and have impacted on industrial relations in both settings (strike action). A total of N = 350 professionals (n = 60 expatriates) from 54 organizations in aid, government, higher education and industry (mean response rate = 36%) responded to an organizational survey form. Remuneration ratios between international and local respondents based on the World Bank's index of purchasing power parity approached 9:1. In both sites staff compared pay and benefits (remuneration) packages: Internationally remunerated staff rated their ability higher than their local counterparts did; locally remunerated groups reported more injustice in remuneration, were more demotivated by the gaps, and were more likely to be thinking about leaving the organization. In-country workshops of N = 40 largely local stakeholders from aid and community organizations plus government ministries considered the survey's findings and recommended: in Solomon Islands, (a) introducing a policy of localization, (b) establishing a remuneration commission (already existent in Papua New Guinea), and (c) reducing the remunerative gap; in Papua New Guinea, (d) reversing the post-Independence \"dual pay system\" (currently official policy), (e) instituting pay-for-performance, and (f) ensuring the existent localization policy is applied to recruitment, selection, and staff career planning and management. 相似文献
25.
Results from studies of observing responses have suggested that stimuli maintain observing owing to their special relationship to primary reinforcement (the conditioned-reinforcement hypothesis), and not because they predict the availability and nonavailability of reinforcement (the information hypothesis). The present article first reviews a study that challenges that conclusion and then reports a series of five brief experiments that provide further support for the conditioned-reinforcement view. In Experiments 1 through 3, participants preferred occasional good news (a stimulus correlated with reinforcement) or no news (a stimulus uncorrelated with reinforcement) to occasional bad news (a stimulus negatively correlated with reinforcement). In Experiment 4 bad news was preferred to no news when the absence of stimulus change following a response to the bad-news option was reliably associated with good news. When this association was weakened in Experiment 5 the results were intermediate. The results support the conclusion that information is reinforcing only when it is positive or useful. As required by the conditioned-reinforcement hypothesis, useless information does not maintain observing. 相似文献
26.
Neuropsychoanalysis focuses on the neural counterparts of psychoanalytically interesting phenomena and has left the difference in the metaphysical presuppositions between neuroscience and psychoanalysis unexamined. The authors analyse the logical possibilities concerning the relation between the brain and the mental unconscious in terms of the serial, parallel, epiphenomenalist and Kantian conceptions, and conclude that none of them provides a satisfactory ground for neuropsychoanalysis. As far as psychoanalytic explanations refer to the mental unconscious, they cannot be verified with the help of neuroscience. Neither is it possible to form a picture of how a neuro-viewpoint might be of help for psychoanalytic theorizing. Neuropsychoanalysis has occasionally been seen as a reductionist affair, but the authors suggest that neuropsychoanalysts themselves lean on the hybrid conception, which combines neuroscientific and psychoanalytic viewpoints. The authors state arguments in favour of the interfield conception of neuropsychoanalysis that takes seriously the metaphysical tensions between neuroscience and psychoanalysis. 相似文献
27.
In 2008, nearly 31% of vehicle fatalities were related to failure to adhere to safe vehicle speeds (National Highway Traffic Safety Administration [NHTSA], 2009). The current study evaluated the effect of a rectangular rapid-flashing beacon (RRFB) triggered by excessive speed on vehicle speed using a combined alternating treatments and reversal design. The percentage of vehicles traveling above 41 mph (66 km per hour) decreased by 20%, and speed distributions showed a shift toward lower speeds during the RRFB condition. 相似文献
28.
Women are becoming infected with HIV via heterosexual activity at an accelerating rate, both in the United States and globally. Although a number of evaluations of behavioral risk-reduction interventions for women have been reported, many suffer from methodological problems that weaken confidence in their findings, and furthermore it is clear that many women are unable to respond to the interventions that have been tested. Most women infected through heterosexual activity are infected by their primary partner, yet achieving consistent condom use with this partner can be highly challenging for women. The present article presents recent work and innovative ideas for intervention strategies that may be more feasible, and thus more effective, for women at risk for HIV infection by their primary male partner. 相似文献
29.
J A Dinsmoor 《Journal of the experimental analysis of behavior》2001,75(3):311-333
A molecular analysis based on the termination of stimuli that are positively correlated with shock and the production of stimuli that are negatively correlated with shock provides a parsimonious count for both traditional discrete-trial avoidance behavior and the data derived from more recent free-operant procedures. The necessary stimuli are provided by the intrinsic feedback generated by the subject's behavior, in addition to those presented by the experimenter. Moreover, all data compatible with the molar principle of shock-frequency reduction as reinforcement are also compatible with a delay-of-shock gradient, but some data compatible with the delay gradient are not compatible with frequency reduction. The delay gradient corresponds to functions relating magnitude of behavioral effect to the time between conditional and unconditional stimuli, the time between conditioned and primary reinforcers, and the time between responses and positive reinforcers. 相似文献
30.
Mazur JE 《Journal of the experimental analysis of behavior》2006,86(2):211-222
Pigeons responded on concurrent-chains schedules with equal variable-interval schedules as initial links. One terminal link delivered a single reinforcer after a fixed delay, and the other terminal link delivered either three or five reinforcers, each preceded by a fixed delay. Some conditions included a postreinforcer delay after the single reinforcer to equate the total durations of the two terminal links, but other conditions did not include such a postreinforcer delay. With short initial links, preference for the single-reinforcer alternative decreased when a postreinforcer delay was present, but with long initial links, the postreinforcer delays had no significant effect on preference. In conditions with a postreinforcer delay, preference for the single-reinforcer alternative frequently switched from above 50% to below 50% as the initial links were lengthened. This pattern of results was consistent with delay-reduction theory (Squires & Fantino, 1971), but not with the contextual-choice model (Grace, 1994) or the hyperbolic value-added model (Mazur, 2001) as they have usually been applied. However, the hyperbolic value-added model could account for the results if its calculations were expanded to include reinforcers delivered in later terminal links. The implications of these findings for models of concurrent-chains performance are discussed. 相似文献