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51.
A new method is proposed for a simultaneous factor analysis of dichotomous responses from several groups of individuals. The method makes it possible to compare factor loading pattern, factor variances and covariances, and factor means over groups. The method uses information from first and second order proportions and estimates the model by generalized least-squares. Hypotheses regarding different degrees of invariance over groups may be evaluated by a large-sample chi-square test.The research of the first author was supported partly by the Bank of Sweden Tercentenary Foundation under project Structural Equation Models in the Social Sciences, project director Karl G. Jöreskog, and partly by the Swedish Research Council in the Humanistic and Social Sciences under project Analysis of Contingency Tables, project director Bengt Muthén. 相似文献
52.
Experiment 1 demonstrated for the first time a stimulus-reinforcer interaction in pigeons trained with free-operant multiple schedules of reinforcement. Pigeons that treadle pressed in the presence of a tone-light (TL) compound for food exhibited primarily visual stimulus control on a stimulus-element test, whereas pigeons that avoided shock in TL exhibited auditory control. In Experiment 2, this selective association was blocked in pigeons pretrained with the biologically contingency-disadvantage element of the compound (i.e., tone-food or light-shock) before TL training. When this pretraining preceded compound-stimulus training, control was now auditory in pigeons that treadle pressed for food and was visual in pigeons that avoided shock. Previous attempts at blocking this selective association were unsuccessful in pigeons (LoLordo, Jacobs, & Foree, 1982) but were successful in rats (Schindler & Weiss, 1985). Experiment 2 established that selective associations can be blocked in pigeons when the procedures that were effective with rats were systematically replicated. These results further demonstrate the cross-species generality of an associative attentional mechanism involving a biological constraint on learning in species with different dominant sensory systems. 相似文献
53.
J. O. Ramsay 《Psychometrika》1980,45(2):149-165
In studies involving judgments of similarity or dissimilarity, a variety of other variables may also be measured. Examples might be direct ratings of the stimuli, pairwise preference judgments, and physical measurements of the stimuli with respect to various properties. In such cases, there are important advantages to joint analyses of the dissimilarity and collateral variables. A variety of models are described for relating these and algorithms described for fitting these to data. A number of hypothesis tests are developed and an example offered.The research reported here was supported by grant number APA 320 to the author by the National Research Council of Canada. 相似文献
54.
Comparing to perfection: How cultural norms for appearance affect social comparisons and self-image 总被引:3,自引:3,他引:0
Theory and research suggests that cultural norms for appearance present unrealistic standards of beauty which may contribute to women's body dissatisfaction. In Study 1, women described their appearance more negatively than men and made more upward social comparisons about their bodies, but not about other domains. Women also compared more than men with unrealistic targets (e.g., models). In Study 2, we explored the role of cultural norms for appearance in social comparisons with relevant (peer) or irrelevant (model) superior targets. When cultural norms were not salient, participants judged a peer to be more relevant, compared more with the peer, and were more negatively affected by the peer. However, when cultural norms were salient, participants judged a professional model to be equally relevant, compared more with the model and felt worse after exposure to the model. We discuss the powerful role of cultural norms in determining social comparison processes and self-appraisals. 相似文献
55.
56.
The purposes of this short-term longitudinal study were to investigate (a) stability and change in social comparisons across time; (b) the relationship between physical health and the use of social comparisons across time; (c) whether psychological well-being is best predicted by prior or concurrent social comparisons; and (d) the moderating effects of social comparisons. Community-dwelling elderly women (N=149) completed self-report instruments designed to measure social comparisons, psychological well-being, and physical health at two times, 2 years apart. Worse health at Time 1 predicted more frequent and less positive social comparisons at Time 2. Concurrent, but not prior, social comparisons contributed to a number of domains of psychological well-being. Further, the effects of prior health status on subsequent psychological functioning (Time 2) were moderated by social comparison processes. Women in poorest health who engaged in positive social comparisons showed less depression and anxiety and more positive relations with others at Time 2. Little support was found for the influence of prior psychological functioning on subsequent physical health. 相似文献
57.
《The Journal of social psychology》2012,152(1):98-115
ABSTRACT In this paper, we argue that the target of comparison should be taken into consideration when evaluating the associated outcomes of negative comparisons in the context of dramatic social change. To achieve this general goal, we considered five distinct targets of comparison: social (my group versus another group), temporal (my group across time), and temporal inter-group (my group versus another group across time). We hypothesised that in times of constant social change, two points of anchors (social and temporal) are simultaneously needed to evaluate one's position. A total of 236 high school and university students from Mongolia participated in the study. We used hierarchical regression analysis to test our hypotheses. As predicted, we found that temporal inter-group comparisons are better predictor of collective esteem than their social and temporal counterparts. Moreover, the link from past and future temporal inter-group comparisons to collective esteem was negative as hypothesized. Results are discussed in terms of theoretical implications. 相似文献
58.
Research demonstrates that people utilize both reasoning and feeling in decision making and that both strategies can be advantageous. However, little is known about how people perceive their decision-making relative to others. Despite research findings and popular appeals supporting the use of affective decision processes, across a series of studies, we find that individuals believe they rely more on reasoning, and less on feelings, than others. These effects are driven by the motivation to self-enhance where, in most contexts, individuals believe the use of reasoning is superior, and self-enhancing, compared to the use of feelings. Consistent with this mechanism, beliefs that one’s decisions are more rational than others’ are as follows: (a) stronger for those who exhibit greater beliefs in the superiority of reasoning (vs. feeling), (b) attenuated when the decision context precludes motivational thinking about the self or the self is affirmed, and (c) reversed when the use of feelings is perceived as more self-enhancing. We demonstrate downstream consequences (e.g., decision delegation), rule out alternative explanations, and discuss practical implications of these lay beliefs. 相似文献
59.
《Body image》2014,11(4):464-473
We evaluated the structure and validity of the Upward Appearance Comparison Scale (UPACS) and Downward Appearance Comparison Scale (DACS) (O’Brien et al., 2009) in Chinese samples. In Study 1, principal component analysis on an initial sample (427 women, 123 men) and confirmatory factor analysis on another sample (447 women, 121 men) found that a 15-item, two component model had the best overall fit. Derived components had moderate correlations with most conceptually related measures and low correlations with less conceptually related indices. Study 2 participants (310 women, 201 men) completed the UPACS and DACS as well as measures of disordered eating, fatness concern, and negative affect; they were re-assessed one year later. Baseline UPACS scores predicted changes in disordered eating for women and fatness concerns for men, independent of initial disturbances, but DACS responses were not related to outcomes. Findings highlighted the potential utility of derived UPACS and DACS within a Chinese context. 相似文献
60.
Kari Jeanne Visconti Becky Kochenderfer-Ladd Claire A. Clifford 《Journal of applied developmental psychology》2013
A social comparison framework was used to examine the relations between children's attributions for victimization and adjustment. In Study One, 192 nine-to ten-year-old children were asked why someone may pick on them. Results revealed attributions reflecting five causes of victimization that could be reliably sorted by direction of social comparison: (a) jealous peer (downward), (b) mutual antipathy (horizontal), (c) being different from each other (horizontal), (d) personal behavior (upward) and (e) being uncool (upward). Children's responses were used to create an attribution measure that was administered to 206 eight-to eleven-year-old children. Results were consistent with the social comparison hypothesis such that peer jealousy was uniquely associated with lower levels of loneliness and greater acceptance whereas personal behavior and not being uncool were correlated with greater loneliness and lower perceived acceptance and self-esteem. Findings supported the usefulness of a social comparison framework for understanding associations among attributions and adjustment. 相似文献