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21.
Concepts of power and agency have become increasingly prominent in the youth studies literatures and related research. A focus of the research to date has been an examination of how a better understanding of young people's lived experiences can reveal possibilities for young people's agency to emerge. Despite increased interest in the term agency, much less has been said about how the concept is defined and recognized in research with young people, including what the concept may entail but crucially, how the term is linked to and underpinned by the related concept of power. This paper seeks to contribute to our understanding of power and agency as utilized in research with young people. The discussion that follows identifies the possible ways in which different theoretical positions shape our understanding of how power and agency are investigated and how these understandings inform the ways we interpret young people's perspectives and actions as holding potential for ‘agency’. Drawing on recent empirical examples, we consider how varying interpretations of power and/or agency shape not only the ways in which young people's agentic experiences are theorized (and the related ontological and epistemological assumptions these positions imply) but also the presumed effects of that agency.  相似文献   
22.
This essay identifies ten significant methodological challenges for understanding aggression and gender. In light of the recent explosion of research on indirect/relational/social aggression, it seems important to clarify gaps in our current understanding and to identify promising methods by which better answers might be found. The discussion begins with basic issues of definitions, contexts and subtypes, moves on to points concerning sampling and measures, and addresses whether current evidence warrants deciding that girls are as aggressive as boys. We conclude that although research has shown that the majority of girls' aggression takes indirect/relational/social forms, it is premature to conclude that boys do not also engage in these behaviors. We caution against assuming that physical and indirect/relational/social aggression are comparable in their developmental origins and consequences, and urge researchers to consider that fully understanding indirect/relational/social aggression might require different conceptual frameworks and research methods.  相似文献   
23.
This paper discusses the geography of parental choice in a rural locale and shows how a group of parents negotiated their way through the process of primary school choice. Using ethnographic data collected through interviews and observations with parents and staff from three rural primary schools in England, the research utilises Bourdieu's concepts of capital, habitus and field to show how the resources and values the parents held affected the school choices they made. The paper demonstrates that the longer-term resident local parents were influenced not only by their cultural capital but also by familial ties and an emotional commitment to the rural locale and these parents were therefore more inclined to support their local school. In contrast, the more recent newcomer parents used their cultural capital and spatial power to shop around to find what they believed to be the ‘right’ school. The paper argues that the newcomer parents had less allegiance to place and hence to the symbolic position that the school holds within the rural community within which they lived.  相似文献   
24.
The predominant theoretical orientation of the majority of scientists studying human behavioral development and family functioning is derived from systems models. These theories are dynamic in their conceptualization and emphasize process and context. To a large extent, the analytic strategies we employ are not consistent with our theoretical assumptions. Analytic methods that focus on moderating and mediating processes rather than main effects, on within‐group variability and the sources of that variability, and on the identification of interrelated patterns of change in individuals, families, and environments are needed for our research results to mirror the complexity of our theories.  相似文献   
25.
This paper tackles the practical application of statistical tools. Chemical development is a rich area for collaboration between statisticians and chemists, but most statisticians encounter difficulties in promoting the tools to this client group. This paper, presented from a chemist's perspective, is intended to help bridge the gap between the two professions. The paper explores differences in uptake and attitudes towards adopting these techniques and suggests what has hindered or helped the process of effective application of experimental design. Copyright © 2003 John Wiley & Sons, Ltd.  相似文献   
26.
27.
Michel's notion of the inevitable and ironic transformation of groups with egalitarian intent into groups with oligarchical practices is examined through an analysis of thirty-four role playing partisan groups. Each group is a triad with an extended shared history or a history of equality that comes with friendship. Each group differentiated itself by selecting a representative to confront another student who played the role of a university dean. In nineteen of the groups the constituents obtained a news report of the outcome of those negotiations independent of their representative's report. In the other fifteen groups the constituents had to depend on their representative's report. In those groups that relied solely on their representative's report, oligarchical interrelations emerged. This contrasts with the news report groups who maintained egalitarian relationships while developing a political standpoint toward each other, the opposition and the future. We conclude that Michels' statement on organizational oligarchy is illuminated further by a consideration of an emergent monopoly of knowledge.  相似文献   
28.
Abstract

Imputation methods for missing data on a time-dependent variable within time-dependent Cox models are investigated in a simulation study. Quality of life (QoL) assessments were removed from the complete simulated datasets, which have a positive relationship between QoL and disease-free survival (DFS) and delayed chemotherapy and DFS, by missing at random and missing not at random (MNAR) mechanisms. Standard imputation methods were applied before analysis. Method performance was influenced by missing data mechanism, with one exception for simple imputation. The greatest bias occurred under MNAR and large effect sizes. It is important to carefully investigate the missing data mechanism.  相似文献   
29.
The statistical properties of control charts are usually evaluated under the assumption that the observations from the process are independent. For many processes however, observations which are closely spaced in time will be correlated. This paper considers EWMA and CUSUM control charts for the process mean when the observations are from an AR(1) process with additional random error. This simple model may be a reasonable model for many processes encountered in practice. The ARL and steady state ARL of the EWMA and CUSUM charts are evaluated numerically using an integral equation approach and a Markov chain approach. The numerical results show that correlation can have a significant effect on the properties of these charts. Tables are given to aid in the design of these charts when the observations follow the assumed model.  相似文献   
30.
Fourcade  Marion  Johns  Fleur 《Theory and Society》2020,49(5-6):803-832
Theory and Society - Machine learning algorithms reshape how people communicate, exchange, and associate; how institutions sort them and slot them into social positions; and how they experience...  相似文献   
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