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We investigated how the ability to deceive emerges in early childhood among a sample of young preschoolers (Mean age = 34.7 months). We did this via a 10‐session microgenetic method that took place over a 10‐day period. In each session, children played a zero‐sum game against an adult to win treats. In the game, children hid the treats and had opportunities (10 trials) to win them by providing deceptive information about their whereabouts to the adult. Although children initially showed little or no ability to deceive, most spontaneously discovered deception and systematically used it to win the game by the tenth day. Both theory of mind and executive function skills were predictive of relatively faster patterns of discovery. These results are the first to provide evidence for the importance of cognitive skills and social experience in the discovery of deception over time in early childhood. 相似文献
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Tom Heyman Anke Bruninx Keith A. Hutchison Gert Storms 《Behavior research methods》2018,50(6):2173-2183
Many researchers have tried to predict semantic priming effects using a myriad of variables (e.g., prime–target associative strength or co-occurrence frequency). The idea is that relatedness varies across prime–target pairs, which should be reflected in the size of the priming effect (e.g., cat should prime dog more than animal does). However, it is only insightful to predict item-level priming effects if they can be measured reliably. Thus, in the present study we examined the split-half and test–retest reliabilities of item-level priming effects under conditions that should discourage the use of strategies. The resulting priming effects proved extremely unreliable, and reanalyses of three published priming datasets revealed similar cases of low reliability. These results imply that previous attempts to predict semantic priming were unlikely to be successful. However, one study with an unusually large sample size yielded more favorable reliability estimates, suggesting that big data, in terms of items and participants, should be the future for semantic priming research. 相似文献
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The authors investigated how children and adults evaluate the "niceness" of individuals who engage in resource distribution, with a focus on their sensitivity to the proportion of resources given. Across 3 experiments, subjects evaluated the niceness of a child who gave a quantity of pennies to another child. In Study 1 (N = 30), adults showed sensitivity to the proportion given, whereas 5- and 7-year-old children did not. In Study 2 (N = 74), both younger (3- to 5-year-old) and older (6- to 8-year-old) children were sensitive to proportion only when resources were earned by a giver in collaboration with the recipient rather than by the giver alone. Adults, however, were sensitive to proportion in both cases. In Study 3 (N = 44), the authors tested 5- and 6-year-olds and their parents to be sure that socioeconomic and ethnic differences between samples did not drive results and replicated key findings from Studies 1 and 2. Together, these findings indicate that children favor proportional resource distribution in situations that invoke intuitions about equity. The authors suggest that these intuitions may form the basis for adult notions of fairness and generosity. 相似文献
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One-year prevalences of self-reported noteworthy suicidal ideation and nonfatal suicide attempts were assessed in a large sample of U.S. Air Force active duty members (N = 52,780). Participants completed the 2006 Community Assessment, which was conducted online. Over 3% of male and 5.5% of female participants reported having experienced noteworthy suicidal ideation during the previous year, and 8.7% of those with ideation reported a recent suicide attempt. Demographic factors predicting significantly increased risk for suicidal ideation included female gender, low rank, and non-Christian religious affiliation; unmarried men were also at increased risk. Groups that were at increased risk for nonfatal suicide attempts included low-ranking men and Hispanic women. Implications for prevention efforts are discussed. 相似文献
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James Heyman Barbara Mellers Sergei Tishcenko Alan Schwartz 《Motivation and emotion》2004,28(1):65-83
The pleasure of an outcome is often evaluated relative to salient reference points. In the background, increasing sequences of positive outcomes are more enjoyable than decreasing sequences. In the foreground, outcomes that could have been worse are often more enjoyable than those that could have been better. How does pleasure vary when both background and foreground reference points are salient? Using a repeated gambling task in which participants make a choice, learn the outcome, watch their cumulative earnings change, and rate the pleasure of the outcome, we explore this question. Pleasure depends on background and foreground reference points, but the immediate events tend to dominate. The relatively narrow focus on the most recent reference points leads to myopic pleasure. We offer a modified version of decision affect theory to account for the results and explore the implications for consumer satisfaction. 相似文献
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Reasoning about seven physics principles within and across ontological kinds was examined among 188 5- and 7-year-olds and 59 adults. Individuals in all age groups tended to appropriately generalize what they learned across ontological kinds. However, children also showed sensitivity to ontological kind in their projections: when learning principles with reference to people they were more likely to assume that the principles apply to another person than to an inanimate object, and when learning with reference to an inanimate object they were more likely to assume that the principles apply to another inanimate object than to a person. Five-year-olds, but not 7-year-olds, projected concepts learned about people to a greater extent than principles learned about inanimate objects, closely paralleling the findings of Carey for the biological domain (Carey, S. (1985). Conceptual change in childhood. Cambridge, MA: MIT Press). Results from a separate sample of 22 5-year-olds suggest that the primary findings cannot be explained by response perseveration. The present findings indicate that children understand physics principles that apply to both animate and inanimate objects, but distinguish between these ontological kinds. 相似文献
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