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141.
The present study examines both the unique and the combined role of best friends' delinquency and perceived friendship quality in the development of adolescent delinquency. Questionnaire data were gathered from 435 Dutch adolescent best friends (mean age at first wave = 12.97) over a period of 5 years with annual assessments. Results showed that mean levels of delinquency and perceived friendship quality increased over time. Adolescent best friends were highly similar in both mean levels and changes in delinquency over time. For boys, similarity in mean level delinquency between best friends was higher than for girls. In addition, only for boys, friends' delinquency is associated with increases in adolescent delinquency over time, and adolescents' delinquency is associated with increases in friends' delinquency over time. No bidirectional longitudinal associations were found between perceived friendship quality and adolescent delinquency. No interaction effects between friendship quality and friends' delinquency on adolescent delinquency were found. Thus, findings were more in support of the differential association theory than of the social control theory. 相似文献
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143.
Wim Dekkers 《Theoretical medicine and bioethics》2009,30(5):335-349
The notion of home is well known from our everyday experience, and plays a crucial role in all kinds of narratives about human
life, but is hardly ever systematically dealt with in the philosophy of medicine and health care. This paper is based upon
the intuitively positive connotation of the term “home.” By metaphorically describing the goal of palliative care as “the
patient’s coming home,” it wants to contribute to a medical humanities approach of medicine. It is argued that this metaphor
can enrich our understanding of the goals of palliative care and its proper objectives. Four interpretations of “home” and
“coming home” are explored: (1) one’s own house or homelike environment, (2) one’s own body, (3) the psychosocial environment,
and (4) the spiritual dimension, in particular, the origin of human existence. Thinking in terms of coming home implies a
normative point of view. It represents central human values and refers not only to the medical-technical and care aspects
of health care, but also to the moral context. 相似文献
144.
Joke Opdenacker Ilse De Bourdeaudhuij Yves Vanden Auweele Filip Boen 《Psychology of sport and exercise》2009,10(6):595-601
ObjectivesA lifestyle physical activity intervention in women based on the transtheoretical model and social–cognitive theory effectively increased physical activity. The aim of the present study was to examine possible mediators (perceived benefits and barriers of physical activity, self-efficacy, processes of change, and social support) of these physical activity changes.MethodsMembers of four units of a women's organization followed a six-month minimal-contact physical activity program. The intervention program included one group meeting, a self-help booklet and five monthly reminder letters. Members of two other units served as control group. Physical activity (accelerometer counts), and psychosocial constructs (self-report questionnaires) were assessed at baseline (pretest) and directly after the intervention (posttest). Women who completed all measurements (n = 101) were included in the mediation analyses.ResultsParticipants in the intervention group reported significantly greater increases in the use of behavioral processes from pretest to posttest than participants in the control group. None of the proposed psychosocial constructs showed a mediating effect on changes in physical activity.ConclusionsThe mechanisms proposed by the transtheoretical model and social–cognitive theory could not explain the positive effect of the intervention on physical activity. Identifying the working components of an intervention remains a challenging and necessary step in the development of effective low-cost and high-reach physical activity interventions. 相似文献
145.
During the last two centuries there has been a methodological struggle over teaching the deaf. Do deaf people learn to communicate by means of gestures and signs (the “manual method”) or is it important for them to learn speech and lip-reading (the “oral method”)? In the second half of the nineteenth century, many schools for the deaf made the transition from the manual to the oral method, which the Milan conference of teachers of the deaf decided to promote in 1880. In this conversion, Jews played an important role. Yet there appears to be a clear link between their efforts and Jewish tradition, including its perception of the deaf. 相似文献
146.
Wim P. Krijnen 《Psychometrika》1994,59(2):269-270
De Vries (1993) discusses Pearson's product-moment correlation, Spearman's rank correlation, and Kendall's rank-correlation coefficient for assessing the association between the rows of two proximity matrices. For each of these he introduces a weighted average variant and a rowwise variant. In this note it is shown that for all three types, the absolute value of the first variant is greater than or equal to the absolute value of the second.The author is obliged to Frits E. Zegers for useful comments on an earlier version of this paper. 相似文献
147.
How to improve our understanding of group decision making with the help of artificial intelligence 总被引:1,自引:0,他引:1
Wim B. G. Liebrand 《Acta psychologica》1992,80(1-3):279-295
Within science we primarily obtain knowledge of a specific field by reading the published results of theoretical and empirical studies. It is argued that this approach may lead to a biased and incomplete perspective of a research area. It is proposed to also use methods from Artificial Intelligence to elicit, model and use the knowledge of experts. It is expected that especially their heuristic knowledge is relevant for problem solving and consultancy applications. An illustrative example concludes the paper. 相似文献
148.
We characterize the first-order formulas with one free variable that are preserved under bisimulation and persistence or strong
persistence over the class of Kripke models with transitive frames and unary persistent predicates.
This revised version was published online in June 2006 with corrections to the Cover Date. 相似文献
149.
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