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301.
A series of 14 field experiments on the differential treatment of ethnic majority and minority groups were conducted. In all studies, German participants were confronted with a German or a foreign confederate (ostensibly a member of the migrant-worker population or a refugee/asylum seeker). In 9 experiments, the foreign confederate received worse treatment than did his German counterpart. Meta-analyses showed a significant overall correlation between ethnic group membership and indexes of discrimination (r= .24), which support the assumption of everyday ethnic discrimination in Germany. Categorizing studies according to the directness of interaction between confederate and participants revealed a significantly stronger discrimination in remote contact situations (r= .34 vs. r= .17), replicating results of a review on American studies by Crosby, Bromley, and Saxe (1980). 相似文献
302.
The argument that scarce health care resources should be distributed so that patients in 'need' are given priority for treatment is rarely contested. In this paper, we argue that if need is to play a significant role in distributive decisions it is crucial that what is meant by need can be precisely articulated. Following a discussion of the general features of health care need, we propose three principal interpretations of need, each of which focuses on separate intuitions. Although this account may not be a completely exhaustive reflection of what people mean when they refer to need, the three interpretations provide a starting-point for further debate of what the concept means in its specific application. We discuss combined interpretations, the meaning of grading needs, and compare needs-based priority setting to social welfare maximisation. 相似文献
303.
Probing three-way interactions in moderated multiple regression: development and application of a slope difference test 总被引:3,自引:0,他引:3
Researchers often use 3-way interactions in moderated multiple regression analysis to test the joint effect of 3 independent variables on a dependent variable. However, further probing of significant interaction terms varies considerably and is sometimes error prone. The authors developed a significance test for slope differences in 3-way interactions and illustrate its importance for testing psychological hypotheses. Monte Carlo simulations revealed that sample size, magnitude of the slope difference, and data reliability affected test power. Application of the test to published data yielded detection of some slope differences that were undetected by alternative probing techniques and led to changes of results and conclusions. The authors conclude by discussing the test's applicability for psychological research. 相似文献
304.
Video glasses have previously been reported to be an effective instrument for emotion induction or for reducing pain perception.
In the present study, we assessed the application of video glasses within the affective picture viewing paradigm. Possible
advantages of this new method were tested by a comparison with a commonly used video projector. Twenty-four participants viewed
sustained picture series of pleasant, neutral, and unpleasant valence with video glasses and with a projector on different
days. Affective report, heart rate (HR), and skin conductance level were measured. The results showed that the video glasses
presentation mode is not generally superior to the projector mode. Instead, typical responses to prolonged presentations of
emotional pictures were obtained across both modalities with valence-modulated pleasure ratings and with an arousal modulation
for arousal ratings, skin conductance level, and HR. These results suggest that video glasses are as useful for presenting
prolonged affective picture series as are projectors. Specific contexts in which the application of video glasses is preferential
are discussed. 相似文献
305.
Rupert Hölzl Andreas Möltner Claus W. Neidig Lutz-Peter Erasmus 《Integrative psychological & behavioral science》1998,33(3):264-279
Clinical and experimental evidence on referred pain and spinal-afferent convergence demonstrates a close relationship between
visceral and somatosensory perception, which is important for current models of symptom perception and central body representation.
The study uses a psychophysical approach to quantify these interactions at the perceptual level, taking into account problems
of comparable intermodal scaling and the role of awareness. An experiment on somatosensory masking of distension stimuli in
the colon is reported in which a multiple staircase method of forced choice discrimination with concurrent sensation ratings
was employed. Results showed perceptual masking of visceral by abdominal stimuli but not vice versa. The masking effect was
not enhanced by intratomal placement of the abdominal stimulus in the lower left quadrant. This contradicts the spinal sensory
convergence model and points to perceptual interactions at higher brain levels. Loglinear analysis of relations between discrimination
and subjective sensation revealed qualitative differences of somatovisceral perception at the preconscious as compared to
the conscious level. This argues for a two-process model of integrative body perception. 相似文献
306.
Andreas Bartels 《Synthese》1995,105(3):347-379
The rationality of scientific concept formation in theory transitions, challenged by the thesis of semantic incommensurability, can be restored by theChains of Meaning approach to concept formation. According to this approach, concepts of different, succeeding theories may be identified with respect to referential meaning, in spite of grave diversity of the mathematical structures characterizing them in their respective theories. The criterion of referential identity for concepts is that they meet a relation ofsemantic embedding, i.e. that the embedding concept can be substituted by the embedded one in classical limit situations. Three case studies from contemporary physics theories will be used to show that the Chains of Meaning approach not only yields meaning comparisons for already established concepts (as for Newtonian and Schwarzschild mass) but is also well suited to characterize actual scientific strategies of concept formation in yet open cases such as black hole entropy or relativistic thermodynamics. 相似文献
307.
Doreen A. Rosenthal Richard Bell Andreas Demetriou Anastasia Efklides 《International journal of psychology》1989,24(1-5):57-71
The present study examined whether Greek immigrants in Australia have retained traditional Greek values and behaviours or moved to an integration of these with Anglo-Australian values and behaviours. The sample consisted of Anglo- and Greek-Australian parents and young adolescents and a comparison group of Greeks, resident in Greece. Measures were obtained of values and behaviours considered to be appropriate for family members in the culture. Results showed that Greek-Australians retained the collectivistic values of their Greek culture while Anglo-Australians demonstrated a more individualistic orientation. There was evidence for convergence of Anglo- and Greek-Australian perceptions of appropriate behaviours and thus support for a view that acculturation is more likely to be manifested in behaviours than in core values. Although there were some differences in expressed values and behaviours, overall there was little evidence for a cultural gap between Greek-Australian parents and their adolescents. 相似文献
308.
309.
Jan Alexander Häusser Maren Kattenstroth Rolf van Dick Andreas Mojzisch 《Journal of experimental social psychology》2012,48(4):973-977
The presence of others in threatening situations can be a mixed blessing since it is not always perceived as supportive but can also impair well-being. Building on the social identity approach, we tested the idea that the presence of others has a buffering effect on neuroendocrine stress reactions only if a sense of shared social identity is evoked. Therefore, the salience of social versus personal identity was manipulated. To induce social-evaluative stress, the Trier Social Stress Test for groups (TSST-G) was employed, while in the control conditions the Placebo-TSST-G was used. As predicted, social identity salience attenuated the stress-induced cortisol reaction in the TSST-G condition. By contrast, there was no effect of identity salience in the Placebo-TSST-G conditions. These findings provide the first experimental evidence for the idea that being part of a group buffers neuroendocrine stress only if group members develop a sense of shared social identity. 相似文献
310.
Schmitz F Voss A 《Journal of experimental psychology. Human perception and performance》2012,38(1):222-250
In four experiments, task-switching processes were investigated with variants of the alternating runs paradigm and the explicit cueing paradigm. The classical diffusion model for binary decisions (Ratcliff, 1978) was used to dissociate different components of task-switching costs. Findings can be reconciled with the view that task-switching processes take place in successive phases as postulated by multiple-components models of task switching (e.g., Mayr & Kliegl, 2003; Ruthruff, Remington, & Johnston, 2001). At an earlier phase, task-set reconfiguration (Rogers & Monsell, 1995) or cue-encoding (Schneider & Logan, 2005) takes place, at a later phase, the response is selected in accord with constraints set in the first phase. Inertia effects (Allport, Styles, & Hsieh, 1994; Allport & Wylie, 2000) were shown to affect this later stage. Additionally, findings support the notion that response caution contributes to both global as well as to local switching costs when task switches are predictable. 相似文献