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Schwarzer R Richert J Kreausukon P Remme L Wiedemann AU Reuter T 《International journal of psychology》2010,45(4):260-268
A first step towards the improvement of daily dietary behaviors is forming an intention to change one's nutrition. However, an intention by itself is not sufficient for successful action. Rather, to translate intentions into behavior, careful planning is recommended. Thus, planning constitutes a mediator between the intention and the behavior. However, if a person lacks self-efficacy, this mediation might fail. Previous research in Costa Rica and South Korea has identified perceived self-efficacy as a moderator of the intention-planning-behavior relationship. To examine further the moderator role of self-efficacy, two additional studies were designed in Thailand and Germany. Study 1 surveyed 1718 Thai university students in terms of a low-fat diet; Study 2 surveyed 1140 German internet users in terms of their fruit and vegetable consumption at two measurement points in time, 6 months apart. Intentions served as predictor, planning as mediator, self-efficacy as moderator, and behaviors as outcomes. First, intentions were translated into nutrition behaviors by planning. Second, self-efficacy moderated this mediation in both studies: The strength of the mediated effect increased along with levels of self-efficacy, even when accounting for baseline behaviors. For planning to mediate the intention-behavior relation, people must not harbor self-doubts. If they lack self-efficacy, intentions are not well translated into nutrition behavior through planning. 相似文献
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It is known that the binary Cu–2?wt.% Be alloy can be strengthened by ageing its supersaturated solution at 523?K. The increase in the strength arising from ageing is because of the formation of GP zones. The same level of strength is achieved by ageing the supersaturated solid solution of a dilute binary Cu–4?wt.% Ti alloy at 723?K. In contrast to Cu–2?wt.% Be alloy, the increase in strength in this alloy occurs on account of spinodal decomposition of the as-quenched microstructure through the mechanism of clustering and ordering. In the present study, decomposition of a supersaturated solid solution of the ternary Cu–4?wt.% Ti–2?wt.% Be alloy was studied. Whereas ageing of this alloy at 523?K resulted in the formation of GP zones like in a Cu–2?wt.% Be alloy, ageing at 723?K resulted in a spinodally decomposed microstructure as in a Cu–4?wt.% Ti alloy. The decomposition of the ternary alloy at the two temperatures by two different mechanisms indicates that Be and Ti in solution in Cu act, more or less, independently of each other during ageing. 相似文献
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Intertemporal tradeoffs are ubiquitous in decision making, yet preferences for current versus future losses are rarely explored in empirical research. Whereas rational‐economic theory posits that neither outcome sign (gains vs. losses) nor outcome magnitude (small vs. large) should affect delay discount rates, both do, and moreover, they interact: in three studies, we show that whereas large gains are discounted less than small gains, large losses are discounted more than small losses. This interaction can be understood through a reconceptualization of fixed‐cost present bias, which has traditionally described a psychological preference for immediate rewards. First, our results establish present bias for losses—a psychological preference to have losses over with now. Present bias thus predicts increased discounting of future gains but decreased (or even negative) discounting of future losses. Second, because present bias preferences do not scale with the magnitude of possible gains or losses, they play a larger role, relative to other motivations for discounting, for small magnitude intertemporal decisions than for large magnitude intertemporal decisions. Present bias thus predicts less discounting of large gains than small gains but more discounting of large losses than small losses. The present research is the first to demonstrate that the effect of outcome magnitude on discount rates may be opposite for gains and losses and also the first to offer a theory (an extension of present bias) and process data to explain this interaction. The results suggest that policy efforts to encourage future‐oriented choices should frame outcomes as large gains or small losses. Copyright © 2012 John Wiley & Sons, Ltd. 相似文献
116.
Jamil Bojei Craig C. Julian Che Aniza Binti Che Wel Zafar U. Ahmed 《Journal of Consumer Behaviour》2013,12(3):171-181
This article focuses on the key relationship marketing tools of customer service, loyalty/rewards programs, brand/store community, personalization and customization, and their relationship with customer retention. The relationship between customer service, loyalty/rewards programs, customization, personalization, brand/store community and customer retention were examined via an empirical investigation of 450 loyalty/reward program members of three retail stores in Malaysia. The administration of the survey was personally administered but self‐completed. Four of the five relationship marketing tools, namely, customer service, loyalty/rewards programs, brand/store community and personalization, had a significant positive relationship with customer retention. The findings provided valuable insights into the loyalty program management practices of retail stores in a developing country context. Copyright © 2013 John Wiley & Sons, Ltd. 相似文献
117.
The purpose of this research study was to evaluate faculty perceptions regarding student self-plagiarism or recycling of student papers. Although there is a plethora of information on plagiarism and faculty who self-plagiarize in publications, there is very little research on how faculty members perceive students re-using all or part of a previously completed assignment in a second assignment. With the wide use of plagiarism detection software, this issue becomes even more crucial. A population of 340 faculty members from two private universities at three different sites was surveyed in Fall 2012 semester regarding their perceptions of student self-plagiarism. A total of 89 faculty responded for a return rate of 26.2 %. Overall, institutional policies on self-plagiarism did not exist and faculty did not clearly understand the concept and believed their students did not either. Although faculty agreed students need to be educated on self-plagiarism, faculty assumed students had previously been educated on plagiarism as well as self-plagiarism; only 13 % ensured students understood this concept. 相似文献
118.
Robert E. Remez Emily F. Thomas Kathryn R. Dubowski Stavroula M. Koinis Natalie A. C. Porter Nina U. Paddu Marina Moskalenko Yael S. Grossman 《Attention, perception & psychophysics》2013,75(7):1353-1358
In a spoken utterance, a talker expresses linguistic constituents in serial order. A listener resolves these linguistic properties in the rapidly fading auditory sample. Classic measures agree that auditory integration occurs at a fine temporal grain. In contrast, recent studies have proposed that sensory integration of speech occurs at a coarser grain, approximate to the syllable, on the basis of indirect and relatively insensitive perceptual measures. Evidence from cognitive neuroscience and behavioral primatology has also been adduced to support the claim of sensory integration at the pace of syllables. In the present investigation, we used direct performance measures of integration, applying an acoustic technique to isolate the contribution of short-term acoustic properties to the assay of modulation sensitivity. In corroborating the classic finding of a fine temporal grain of integration, these functional measures can inform theory and speculation in accounts of speech perception. 相似文献
119.
Stephen J. Ceci Paul B. Papierno Katrin U. Mueller-Johnson 《Journal of School Psychology》2002,40(6):477-484
In this commentary we explore both putative and potential relationships between school funding and educational outcomes, for which numerous indices and variables have been examined during the past two decades. We conclude that despite large increases in real dollars, there is no readily discernable link between inputs and outputs, although when statistical control is exerted over prior ability, school mix, and teacher turn-over, certain causal inferences appear warranted. However, it can be argued that the dominant analogy should be reconsidered, and schools serving large numbers of needy children may require higher inputs to keep from further declines, much like certain departments of a hospital require disproportionately more resources than others in order to be successful because they deal with problems that are more severe. 相似文献
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