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131.
132.
An abbreviated version of the Social Phobia and Anxiety Inventory (SPAI) was developed using methods based in nonparametric item response theory. Participants included a nonclinical sample of 1,482 undergraduates (52% female, mean age = 19.4 years) as well as a clinical sample of 105 individuals (56% female, mean age = 36.4 years) diagnosed with either generalized (73%) or specific social phobia (27%). Twenty-three of the 45 SPAI items demonstrated good discrimination along the social anxiety continuum. In addition, option characteristic curves (OCCs) indicated that the SPAI's 7-point scale may generate errors in ranking individuals. Thus, options were collapsed to improve item performance. No gender differences emerged between any of the items' OCCs, suggesting that items function similarly among men and women. The abbreviated version also correlated highly with the original 45-item SPAI and exhibited similar patterns of correlations with measures of social anxiety. The SPAI-23 has considerable practical benefits, including a screening of both social and agoraphobic anxiety as well as decreased assessment and scoring time. 相似文献
133.
This article demonstrates the use of mixed-effects logistic regression (MLR) for conducting sequential analyses of binary observational data. MLR is a special case of the mixed-effects logit modeling framework, which may be applied to multicategorical observational data. The MLR approach is motivated in part by G. A. Dagne, G. W. Howe, C. H. Brown, & B. O. Muthén (2002) advances in general linear mixed models for sequential analyses of observational data in the form of contingency table frequency counts. The advantage of the MLR approach is that it circumvents obstacles in the estimation of random sampling error encountered using Dagne and colleagues' approach. This article demonstrates the MLR model in an analysis of observed sequences of communication in a sample of young adult same-sex peer dyads. The results obtained using MLR are compared with those of a parallel analysis using Dagne and colleagues' linear mixed model for binary observational data in the form of log odds ratios. Similarities and differences between the results of the 2 approaches are discussed. Implications for the use of linear mixed models versus mixed-effects logit models for sequential analyses are considered. 相似文献
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The validity of the social phobia subtype distinction was examined in a large sample of carefully diagnosed social phobics (N = 89). Generalized and specific subtypes were diagnosed reliably, and the generalized subtype showed a consistent pattern of greater symptom severity than did the specific subtype. In addition, generalized social phobics with and without avoidant personality disorder were compared, and a difference was found for only 1 of 4 parameters. The results are discussed in terms of the validity of subtyping in social phobia and the diagnostic boundary between social phobia and avoidant personality disorder. 相似文献
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J. Rick Turner Frank A. Treiber Harry Davis Joseph Rectanwald Walter Pipkin William B. Strong 《Behavior research methods》1997,29(3):386-389
Eighteen subjects (11 males, 7 females) completed a virtual reality car-driving stressor on two occasions several weeks apart. Immediately before and throughout task performance, blood pressure, cardiac output, and total peripheral resistance were assessed. Reactivity scores were calculated for each parameter for each subject as the arithmetic difference between task level and baseline level. The task elicited considerable hemodynamic activation on each occasion of testing, as well as high levels of self-reported task realism, engagement, excitement, and nervousness. Correlation analyses of both absolute and reactivity scores revealed evidence of test-retest reliability. Males were found to exhibit greater absolute levels of and greater increases in systolic blood pressure. The development of tasks suitable for inclusion in a battery of behavioral stressors, responses to which may help identify those at risk for later disease, is of considerable interest in cardiovascular behavioral medicine. The present findings suggest that the virtual reality car-driving task may be useful in this context. 相似文献
138.
Counselling problem drinkers: The realm of specialists. Alcoholics Anonymous or generic counsellors?
A study was carried out to investigate counsellors' attitudes and experiences in working with people with drinking problems and counsellors' understanding of Alcoholics Anonymous as a helping agent. Ninety-four counsellors responded to a questionnaire about their work with people with drinking problems and their knowledge of AA. Generic counsellors tended not to feel competent working with clients with alcohol problems. Feelings of competence increased with greater experience of the client group and, to a lesser extent, with more hours of specialist training. It was found that counsellors whose intake of alcohol amounted to more than eight units per week were less likely to take on clients with alcohol problems than were those who drank less. Counsellors usually had some knowledge of AA but had little understanding of the 12-step programme that forms the basis of recovery for alcoholics as described by AA. They were, however, in favour of clients attending AA as an adjunct to individual counselling 相似文献
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BODY, BRAIN, AND CULTURE 总被引:1,自引:0,他引:1
Victor Turner 《Zygon》1983,18(3):221-245
Abstract. Recent work in cerebral neurology should be used to fashion a new synthesis with anthropological studies. Beginning with Paul D. Madean's model of the triune brain, we explore Ralph Wendell Burhoe's question whether creative processes result from a coadaptation, perhaps in ritual itself, of genetic and cultural information. Then we examine the division of labor between right and left cerebral hemispheres and its implications for the notions of play and "ludic recombination." Intimately related to ritual, play may function in the social construction of reality analogous to mutation and variation in organic evolution. Finally, we consider how our picture of brain functioning accords with some distinctive features of the religious systems dominant in human cultures. 相似文献