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Two experiments used immediate probed recall of words to investigate serial-position effects. Item memory was tested through probing with a semantic category. Relation memory was tested through probing with the word's spatial location of presentation. Input order and output order were deconfounded by presenting and probing items in different orders. Primacy and recency effects over input position were found for both item memory and relation memory. Both item and relation memory declined over output position. The finding of a U-shaped input position function for item memory rules out an explanation purely in terms of positional confusions (e.g., edge effects). Either these serial-position effects arise from variations in the intrinsic memory strength of the items, or they arise from variations in the strength of item–position bindings, together with retrieval by scanning. 相似文献
643.
Recent findings on counterfactual reasoning in children have led to the claim that children's developing capacities in the domain of ‘theory of mind’ might reflect the emergence of the ability to engage in counterfactual thinking over the preschool period (e.g. Riggs, Peterson, Robinson & Mitchell, 1998 ). In the study reported here, groups of 3- and 4-year old children were presented with stories describing causal chains of several events, and asked counterfactual thinking tasks involving changes to different points in the chain. The ability to draw successful counterfactual inferences depended strongly on the inferential length of the problem, and the age of the children; while 3-year-olds performed above chance on short inference counterfactuals, they performed below chance on problems involving longer inference chains. Four-year-old children were above chance on all problems. Moreover, it was found that while success on longer chain inference problems was significantly correlated with the ability to pass tests of standard false belief, there was no such relationship for short inference problems, which were significantly easier than false belief problems. These results are discussed in terms of the developmental relationships between causal knowledge, counterfactual thinking and calculating the contents of mental states. 相似文献
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Renata Bongiorno Craig McGarty Tim Kurz S. Alexander Haslam Chris G. Sibley 《Journal of applied social psychology》2016,46(4):203-215
Collective action expresses group‐based identities, formed by supporters seeking to further particular social causes. While the development of groups linked to action necessitates interaction among supporters, little research has examined how these groups form. Utilizing responses of supporters who participated in 1 of 29 action‐planning sessions, this research presents an initial attempt to identify the ingredients important to this process. It shows that to the extent that the actions agreed on in the course of group interactions were seen as capable of making a difference (action efficacy), and worthy of public expression (action voice), supporters’ group‐based identification was enhanced. This in turn increased their willingness to engage in collective action. Practical implications and avenues for future research to understand the mobilization process are discussed. 相似文献
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Recently, there has been increased interest in decisions‐from‐experience (where decision makers learn from observing the outcomes of previous choices), which provide valuable insights into the learning and preference construction processes underlying many daily decisions. Several process models have been developed to capture these processes, and while such models often fit the data well, many assume that the decision maker is a vigilant observer, processing each outcome. In two studies, we provide a critical test of this assumption using eye tracking to record directed visual attention when participants choose repeatedly among two options, each time being shown the outcome for their chosen option and for the foregone option. Consistently, we find that the vigilance assumption is not supported, with decision makers often not attending to outcome information. Moreover, (in)attention to outcomes is predictable, with vigilance decreasing as more choices are made, and being greater for obtained than for foregone outcomes, and when options deliver only gains as opposed to losses or a mixture of gains and losses. Furthermore, we find that this variation in attentional allocation plays a central role in the apparent indecisiveness (inconsistency) in choice, with increased attention to foregone outcomes predicting switches to that option on the next choice. Together, these findings highlight the value of eye tracking in investigations of decisions‐from‐experience, providing novel insight into the cognitive processes underlying them. Copyright © 2015 John Wiley & Sons, Ltd. 相似文献
648.
Tim Rakow Rebecca J. Wright David J. Spiegelhalter Catherine Bull 《British journal of psychology (London, England : 1953)》2015,106(2):327-348
Funnel plots, which simultaneously display a sample statistic and the corresponding sample size for multiple cases, have a range of applications. In medicine, they are used to display treatment outcome rates and caseload volume by institution, which can inform strategic decisions about health care delivery. We investigated lay people's understanding of such plots and explored their suitability as an aid to individual treatment decisions. In two studies, 172 participants answered objective questions about funnel plots representing the surgical outcomes (survival or mortality rates) of institutions varying in caseload, and indicated their preferred institutions. Accuracy for extracting objective information was high, unless question phrasing was inconsistent with the plot's survival/mortality framing, or participants had low numeracy levels. Participants integrated caseload‐volume and outcome‐rate data when forming preferences, but were influenced by reference lines on the plot to make inappropriate discriminations between institutions with similar outcome rates. With careful choice of accompanying language, funnel plots can be readily understood and are therefore a useful tool for communicating risk. However, they are less effective as a decision aid for individual patient's treatment decisions, and we recommend refinements to the standard presentation of the plots if they are to be used for that purpose. 相似文献
649.
Suicide among U.S. Army soldiers remains a significant concern for both population health and personnel readiness, with firearms constituting the majority of soldier suicides. Means restriction, or removing an at-risk soldier’s access to lethal means, is a well-established procedure for reducing suicides. Nonetheless, various cultural, legal, and practical concerns may encumber firearms restriction implementation in the U.S. Army. This article reviews policy relevant to firearms restriction, including federal laws, Department of Defense directives, and U.S. Army regulations. Recommendations are provided for providers and commanders that balance the rights of soldiers with the need to ensure safety. In particular, installation restriction, field settings, enlisting supportive others, unit engagement, and off-installation storage are discussed. These approaches span the public health intervention model, providing numerous potential avenues to a balanced approach for firearms restriction in preventing suicide. 相似文献
650.