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851.
N. Reid 《Revue canadienne de statistique》1996,24(2):141-166
Recent developments in higher-order asymptotic theory for statistical inference have emphasized the fundamental role of the likelihood function in providing accurate approximations to cumulative distribution functions. This paper summarizes the main results, with an emphasis on classes of problems for which relatively easily implemented solutions exist. A survey of the literature indicates the large number of problems solved and solvable by this method. Generalizations and extensions, with suggestions for further development, are considered. 相似文献
852.
Vanessa A. Green Antonius H. N. Cillessen Donna Berthelsen Kym Irving Di Catherwood 《Social Development》2003,12(4):586-604
Knowing when to compete and when to cooperate to maximize opportunities for equal access to activities and materials in groups is critical to children's social and cognitive development. The present study examined the individual (gender, social competence) and contextual factors (gender context) that may determine why some children are more successful than others. One hundred and fifty‐six children (M age=6.5 years) were divided into 39 groups of four and videotaped while engaged in a task that required them to cooperate in order to view cartoons. Children within all groups were unfamiliar to one another. Groups varied in gender composition (all girls, all boys, or mixed‐sex) and social competence (high vs. low). Group composition by gender interaction effects were found. Girls were most successful at gaining viewing time in same‐sex groups, and least successful in mixed‐sex groups. Conversely, boys were least successful in same‐sex groups and most successful in mixed‐sex groups. Similar results were also found at the group level of analysis; however, the way in which the resources were distributed differed as a function of group type. Same‐sex girl groups were inequitable but efficient whereas same‐sex boy groups were more equitable than mixed groups but inefficient compared to same‐sex girl groups. Social competence did not influence children's behavior. The findings from the present study highlight the effect of gender context on cooperation and competition and the relevance of adopting an unfamiliar peer paradigm when investigating children's social behavior. 相似文献
853.
854.
Sociological Forum - 相似文献
855.
天津港城交通发展模式初探 总被引:1,自引:0,他引:1
一、港城交通存在的主要问题 (一)港城平行发展,争夺空间资源,港城发展相互制约 天津港作为滨海新区发展的核心战略资源,以彰显海滨特色作为新区的发展目标,长期以来港与城平行发展,缺乏有效分隔,在有限的空间里争夺资源,导致相互的空间挤压与影响. 相似文献
856.
南充市郊桃园桃蚜的空间分布型研究 总被引:1,自引:0,他引:1
运用聚集度指标法、Iwao法、Taylor法测定了桃蚜的空间分布型,结果表明:桃蚜的空间格局为聚集分布,分布的基本成份为个体群.聚集的原因是由于环境条件引起的. 相似文献
857.
858.
A consumer satisfaction scale was developed for psychiatric inpatients. The scale was administered to a state-wide sample of (n = 366) patients discharged from acute psychiatric units throughout Missouri. The scale was factor analyzed and given to another sample of (n = 390) discharges. Three out of five factors that were found in the first sample were replicated in a factor analysis of data from the second sample. Acceptable coefficient alphas were obtained on all three factors, demonstrating internal reliability. The three factors were labeled Treatment Effectiveness, Trust of Staff, and Hospital Environment. Comparable levels of satisfaction with prior studies were found on the first general satisfaction factor of Treatment Effectiveness. Subjects discriminated areas of satisfaction by expressing higher levels of dissatisfaction on the factors of Trust of Staff and Hospital Environment. 相似文献
859.
本文拟通过对建立物理学科教育学的实践基础与理论基础的透析,探讨其研究方向,力求阐明它走向成熟的发展方向. 相似文献
860.
对当前教师的法律素质现状、存在的原因作一些初浅的分析 ,并就如何增强法制观念 ,提高教师法律素质作一些探讨。 相似文献