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141.
Some social groups are higher in socioeconomic status than others and the former tend to be favored over the latter. The present research investigated whether observing group differences in wealth alone can directly cause children to prefer wealthier groups. In Experiment 1, 4–5‐year‐old children developed a preference for a wealthy novel group over a less wealthy group. In Experiment 2, children did not develop preferences when groups differed by another kind of positive/negative attribute (i.e. living in brightly colored houses vs. drab houses), suggesting that wealth is a particularly meaningful group distinction. Lastly, in Experiment 3, the effect of favoring novel wealthy groups was moderated by group membership: Children assigned to a wealthy group showed ingroup favoritism, but those assigned to a less wealthy group did not. These experiments shed light on why children tend to be biased in favor of social groups that are higher in socioeconomic status. 相似文献
142.
The less is more effect, an example of an affect heuristic, can be shown in humans when they give greater value to a set of six baseball cards in perfect condition, than to the same set of six perfect cards together with three additional cards each with some value but in fair condition. A similar effect has been reported in monkeys which will eat both grapes and cucumbers but prefer grapes, when they prefer a single grape over a single grape plus a slice of cucumber. In the present experiment, we tested the less is more effect with a nonprimate but social species, dogs. We used dogs that would eat a slice of carrot and a slice of cheese but preferred the cheese. When we then gave them a choice between a slice of cheese and a slice of cheese plus a slice of carrot, most dogs preferred the single slice of cheese. Thus, the less is more effect appears to occur in several species. 相似文献
143.
Kristina K. Vargo Nicole A. Heal Kelly Epperley Elizabeth Kooistra 《Journal of Behavioral Education》2014,23(3):326-343
Preschool and kindergarten teachers expect children to sit appropriately and attend to the teacher during group instruction. However, children may engage in high rates of inappropriate responses that distract other students from learning opportunities. In addition, children often receive intermittent teacher attention for inappropriate responses, which might result in a lack of discrimination for when attention is or is not available. The purpose of the current study was to assess the efficacy of a multiple schedule plus rules indicative of the availability of attention for hand raises during circle time in typical preschool classrooms. Results showed that the rates of hand raises increased or maintained in the reinforcement component and decreased in the extinction component of the multiple schedule in all three classrooms. Results suggest that a multiple schedule plus rules indicative of the availability of attention from a classroom teacher can be used by preschool teachers in typical classrooms to maintain hand raise responses at appropriate levels. 相似文献
144.
The Bottoming‐Out Experience and the Turning Point: A Phenomenology of the Cognitive Shift From Drinker to Nondrinker 下载免费PDF全文
M. Kristina DePue Andrew J. Finch Maury Nation 《Journal of Addictions & Offender Counseling》2014,35(1):38-56
The bottoming‐out experience (BOE) is commonly considered the catalyst to sobriety. A phenomenological study was conducted to gain an understanding about this occurrence for alcoholics. Results indicated two distinct experiences: the BOE and the turning point. 相似文献
145.
The aim of the present study was to investigate positive body image during adolescence. Semi-structured interviews, centring on three body image domains (satisfaction with own appearance, views on exercise, and influence from family and friends) were conducted with 30 early adolescent Swedish girls and boys who at age 10 and 13 had shown the highest level of body satisfaction in a large longitudinal sample. The data were analyzed thematically. Results revealed that the adolescents’ satisfaction with their own appearance was characterized by a functional view of the body and an acceptance of the bodily imperfections that they perceived that they had. The vast majority of the adolescents were physically active and found exercise joyful and health-promoting. Finally, although some of the adolescents had received negative comments about their appearance from family and friends, such comments were not given any importance. 相似文献
146.
Pigeons prefer a risky option with a low probability of a high payoff over a less risky option that results in more food. This finding is analogous to suboptimal human monetary gambling because in both cases there appears to be an overemphasis of the occurrence of the winning event and an underemphasis of the losing event. In the present research, we found that pigeons that were exposed to an enriched environment (a large cage with three other pigeons for 4 h a day) were less likely to show this suboptimal choice behavior compared with typically housed laboratory pigeons in a control group. These results have implications for the mechanisms underlying suboptimal choice by humans (e.g., problem gamblers), and they suggest that a enriched environment may allow for enhanced self-control. 相似文献
147.
Kelly B. Cartwright Timothy R. Marshall Kristina L. Dandy Marisa C. Isaac 《Journal of cognition and development》2013,14(1):61-85
Reading-specific and general color-shape cognitive flexibility were assessed in 68 first and second graders to examine: 1) the development of graphophonological-semantic cognitive flexibility (the ability to process concurrently phonological and semantic aspects of print) in comparison to color-shape cognitive flexibility, 2) the contribution of reading experience to graphophonological-semantic flexibility, and 3) the unique contribution of graphophonological-semantic flexibility to reading comprehension. Second graders scored significantly higher than first graders on both cognitive flexibility tasks; the general flexibility task was easier for all children than the graphophonological-semantic flexibility task; reading experience contributed uniquely to children's graphophonological-semantic flexibility; and graphophonological-semantic flexibility contributed significant, unique variance to children's reading comprehension, consistent with Cartwright's (2002) work with second- to fourth-grade students and adults (2007). 相似文献
148.
Alison M. Darcy Kristina K. Hardy Ross D. Crosby James Lock Rebecka Peebles 《Body image》2013,10(3):399-405
The study explored the psychometric properties of the Eating Disorder Examination Questionnaire (EDE-Q) among 1637 university students. Participants were divided into male (n = 432) and female (n = 544) competitive athletes, and male (n = 229) and female (n = 429) comparison groups comprised of individuals who had not engaged in competitive sports for at least one year. All groups were subjected to confirmatory factor analysis (CFA) to test the fit of the published factor structure in this population, and then exploratory FA (EFA). A three-factor solution was the best fit for three out of four groups, with a two-factor solution providing best fit for the male comparison group. The first factor for all groups resembled a combined Shape and Weight Concern subscale. The factor structure among male and female competitive athletes was remarkably similar; however, non-competitive athletic/low activity males appear qualitatively different from other groups. 相似文献
149.
Do First Graders Make Efficient Use of External Number Representations? The Case of the Twenty-Frame
Andreas Obersteiner Kristina Reiss Stefan Ufer Koen Luwel Lieven Verschaffel 《认知与教导》2013,31(4):353-373
External number representations are commonly used throughout the first years of instruction. The twenty-frame is a grid that contains two rows of 10 dots each, and within each row, dots are organized in two groups of five. The assumption is that children can make use of these structures for enumerating the dots, rather than relying on one-by-one counting. We compared first-grade children's performance on two types of computerized enumeration tasks, in which between one and 20 dots were presented in random arrangements or on a twenty-frame. The number of dots was a strong predictor of response times and accuracy rates in the enumeration task with random arrangements but not in the twenty-frame task. Performance on the twenty-frame task was correlated with performance on a number and arithmetic test, even when other cognitive variables were statistically controlled. We discuss these findings in the light of theories on utilizing external representations to support numerical learning. 相似文献
150.
Kristina L. Steiner David B. Pillemer Dorthe Kirkegaard Thomsen Andrew P. Minigan 《Memory (Hove, England)》2013,21(8):1002-1009
Older adults' memories of events that occurred in adolescence and early adulthood are over-represented compared to other lifetime periods. Prior research on this reminiscence bump has focused on qualities of individual memories. The present study used a novel interview method to examine the potential role played by mental representations of extended lifetime periods. Older adults provided oral life stories, and they divided their transcribed narratives into “chapters”. Participants' ages at chapter beginnings and endings showed pronounced reminiscence bumps. The results are consistent with the idea that personal episodes occurring near the boundaries of extended lifetime periods receive preferential processing that enhances long-term memory. 相似文献