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951.
Using concepts from social identity theory ( Tajfel & Turner, 1979 ) and Lazarus and Folkman's (1984) cognitive theory of stress and coping we tested the capacity for group identification to foster beliefs in one's ability to cope successfully and in turn predict psychological well-being. Black American participants appraised the availability of coping options that varied by level of identity (individual, intragroup, and intergroup) as well as function of coping (problem-focused and emotion-focused). Replicating prior work, participants who were higher in racial group identification reported more positive well-being. Appraisals of individual emotion-focused and intergroup problem-focused options mediated the relationship of group identification with both self-esteem and life satisfaction. Appraisals of intergroup emotion-focused options also partially mediated the relationship between group identification and life satisfaction. Findings suggest that the relationship between minority group identification and well-being may partly be due to its influence over a person's sense that they and their group can respond effectively to disadvantage.  相似文献   
952.
953.
An alternating treatments design was used to compare the effects of two response modes on acquisition and retention rates of letter naming fluency performance (LNF) by six kindergarten English Language Learners (ELLs) performing below the average letter naming level and slope of other ELL classmates. With equal amounts of practice opportunities, ELLs practiced by orally reading printed letters (see/say) or practiced by pointing to a printed letter that was orally read to them (hear/point). The see/say intervention practiced printed letter sounds to enhance oral reading competence. Alternatively, the hear/point intervention confirmed a non-verbal recognition of oral letter sounds to increase attention and information processing of oral and printed letters prior to an oral LNF assessment. The see/say intervention was moderately more effective on LNF rates than the hear/point intervention for all ELLs on the acquisition assessment and for 4 of the 6 ELLs on the retention assessment. Results are discussed in terms of efficiency as well as effectiveness when making decisions about selecting and implementing responsiveness to intervention assessments when ELLs students are not responding to an effective general education program.  相似文献   
954.
Most people are able to identify basic emotions expressed in music and experience affective reactions to music. But does music generally induce emotion? Does it elicit subjective feelings, physiological arousal, and motor reactions reliably in different individuals? In this interdisciplinary study, measurement of skin conductance, facial muscle activity, and self-monitoring were synchronized with musical stimuli. A group of 38 participants listened to classical, rock, and pop music and reported their feelings in a two-dimensional emotion space during listening. The first entrance of a solo voice or choir and the beginning of new sections were found to elicit interindividual changes in subjective feelings and physiological arousal. Quincy Jones' "Bossa Nova" motivated movement and laughing in more than half of the participants. Bodily reactions such as "goose bumps" and "shivers" could be stimulated by the "Tuba Mirum" from Mozart's Requiem in 7 of 38 participants. In addition, the authors repeated the experiment seven times with one participant to examine intraindividual stability of effects. This exploratory combination of approaches throws a new light on the astonishing complexity of affective music listening.  相似文献   
955.
Howard DE  Wang MQ  Yan F 《Adolescence》2007,42(168):629-643
Although a history of forced sexual intercourse affects a relatively small number of U.S. adolescents, it is a persistent and alarming public health problem. This study examined the robustness of the risk profile of adolescents who report a history of forced sexual intercourse using the most current and representative data from the national 2005 Youth Risk Behavior Survey. Overall, 8.01% of high school adolescents reported a history of forced sexual intercourse. The lifetime prevalence for females (10.3%) was roughly twice of that for males (4.8%). Important differences in the risk profile associated with forced sexual intercourse were found by gender.  相似文献   
956.
Psychological differences between women and men, far from being invariant as a biological explanation would suggest, fluctuate in magnitude across cultures. Moreover, contrary to the implications of some theoretical perspectives, gender differences in personality, values, and emotions are not smaller, but larger, in American and European cultures, in which greater progress has been made toward gender equality. This research on gender differences in self-construals involving 950 participants from 5 nations/cultures (France, Belgium, the Netherlands, the United States, and Malaysia) illustrates how variations in social comparison processes across cultures can explain why gender differences are stronger in Western cultures. Gender differences in the self are a product of self-stereotyping, which occurs when between-gender social comparisons are made. These social comparisons are more likely, and exert a greater impact, in Western nations. Both correlational and experimental evidence supports this explanation.  相似文献   
957.
958.
Four empirically equivalent versions of general relativity, namely standard GR, Lorentz-invariant gravitational theory,and the gravitational gauge theories of the Lorentz and translation groups, are investigated in the form of a case study for theory underdetermination. The various ontological indeterminacies (both underdetermination and inscrutability of reference) inherent in gravitational theories are analyzed in a detailed comparative study. The concept of practical underdetermination is proposed, followed by a discussion of its adequacy to describe scientific progress. This revised version was published online in August 2006 with corrections to the Cover Date.  相似文献   
959.
The current paper presents evidence relating low-level lead exposure to impaired executive functioning in young children. Using the Shape School task, we assessed focused attention, attention switching, working memory, and the ability to inhibit automatic responses in a cohort of 170 children. Participants performed the Shape School task at both 48 and 54 months of age; the mean blood lead level was 6.49 microg/dl at 48 months. After controlling for a wide range of sociodemographic, prenatal, and perinatal variables, blood lead level was negatively associated with children's focused attention while performing the tasks, efficiency at naming colors, and inhibition of automatic responding. In addition, children with higher blood lead levels completed fewer phases of the task and knew fewer color and shape names. There was no association between blood lead and performance on the most difficult tasks, those requiring attention switching or the combination of inhibition and switching. Children's IQ scores were strongly associated with blood lead and Shape School performance, and when entered as a covariate, only color knowledge and the number of tasks completed remained significant. Results provide only weak support for impaired executive functioning, but the deficits in color knowledge may indicate a primary sensory deficit or difficulty with forming conditional associations, both implicating disruptions in dopamine system function.  相似文献   
960.
Inequity in its many forms has been the subject of a number of empirical research efforts. Results show that positive inequity, an over-benefited condition, and negative inequity, an under-benefited condition, have divergent effects on subsequent affects and behavioral tendencies. We embed equity treatments within a motivational structure to predict reactions to a quasi-shopping experience in which these methods operate in concert. Interaction effects—predicted by procedural justice considerations as well as instrumentally based arguments—are also tested whereby technical motivation is crossed with the equity conditions. In testing, an online experiment was created incorporating pre- and posttreatment measures. While completing a hypothetical sale, respondents received either an unanticipated, completed coupon field (the over-benefited group), an uncompleted, empty coupon field (the under-benefited group), or were not prompted with a coupon field (the control group). Results showed strong negative effects on postexposure satisfaction, intention, and desire to complete the purchase in the empty coupon field group, and similar positive effects in the completed coupon field group. Moreover, a model linking preexposure variables (expectations and technical sophistication) to postexposure measures was supported indicating carry-through effects. Lastly, procedural justice and instrumental predictions received mixed support when testing for the interaction between technical motivation and inequity. Results showed that, for those in the under-benefited group, there was only a slight tendency for those with higher levels of technical sophistication to report greater satisfaction; however a strong tendency was found for the same individuals to report a lower likelihood of completing the purchase. Implications for future research are discussed.  相似文献   
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