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101.
This article is derived from survey data obtained from a structured sample of 450 MBA graduates and is part of a wider programme of research investigating the current state of management development in Britain. The intention is to analyse the determinants of the amount, the methods and the impact of management development systems in UK organizations and to assess these findings in relation to a comparable analysis of HRD managers. Both the amount and the variety of management development methods are greater than has been previously reported and, for the HRD sample, the impact of this activity is broadly positive. While agreeing on the amount, MBA managers are less enthusiastic about the availability and effectiveness of management development they have experienced. Overall, the management development policy choices made by organizations are consistently the most influential in determining outcomes, and the implications for this are discussed. 相似文献
102.
This paper numerically examines the size robustness of various conditional moment tests in misspecified tobit and probit models. The misspecifications considered include the incorrect exclusion of regressors, ignored heteroskedasticity and false distributional assumptions. An important feature of the experimental design is that it is based on an existing empirical study and is more realistic than many simulation studies. The tests are seen to have mixed performance depending on both the original null hypothesis being tested and type of misspecification encountered. 相似文献
103.
Bart Soenens Maarten Vansteenkiste Luc Goossens Bart Duriez Christopher P. Niemiec 《Social Development》2008,17(3):661-681
This study investigated the associations among psychologically controlling parenting, relational aggression, friendship quality, and loneliness during adolescence. A model was proposed in which relational aggression plays an intervening role in the relations between both parental psychological control and friendship outcomes. In a sample comprised of middle adolescents and their parents, process analyses revealed that psychological control (indexed by parent and adolescent reports) positively predicted adolescents' self-reported relational aggression that, in turn, negatively predicted friendship quality and positively predicted loneliness. The model held for both mothers and fathers and was not moderated by adolescent gender. The discussion focuses on possible mechanisms explaining the relations among psychological control, relational aggression, and friendship outcomes. 相似文献
104.
We examine methods for reducing respondent burden in evaluating alter–alter ties on a set of network structural measures. The data consist of two sets, each containing 45 alters from respondent free lists: the first contains 447 personal networks, and the second 554. Respondents evaluated the communication between 990 alter pairs. The methods were (1) dropping alters from the end of the free-list, (2) randomly dropping alters, (3) randomly dropping links, and (4) predicting ties based on transitivity. For some measures network structure is captured with samples of less than 20 alters; other measures are less consistent. Researchers should be aware of the need to sample a minimum number of alters to capture structural variation. 相似文献
105.
Christopher D. Ives Grant C. Hose David A. Nipperess Mark Patrick Taylor 《Urban Ecosystems》2011,14(1):1-16
Protecting riparian corridors is a commonly applied environmental policy in urban landscapes. However, empirical data demonstrating
their efficacy for biodiversity conservation outcomes is scarce. In this study we investigated whether riparian corridor width
influences the diversity and community structure of ant (Hymenoptera: Formicidae) and vascular plant assemblages therein.
Eighteen corridors of differing widths were selected from within the Ku-ring-gai Local Government Area, Sydney Australia.
Ants were sampled using pitfall traps positioned within rectangular vegetation transects (30 × 10 m). Both ant and plant species
richness, when standardised for sampling effort, were unrelated to riparian corridor width. However, significant compositional
differences between sites were evident with increased width up to ~50 m. Narrow corridors contained greater abundances of
opportunistic ant species and higher proportions of exotic plants. We interpret this to be the result of the greater disturbance/edge
influence derived from adjacent upland urban environments. Site beta diversity did not increase with corridor width, suggesting
that the exclusion of novel upslope habitats in narrow riparian corridors is not a significant cause of community assemblage
modification at these sites. To minimise the impact of deleterious edge effects on ant fauna, environmental managers should
seek to retain riparian corridors wider than ~50 m. However, we observed substantial between-site variability of biotic assemblages,
irrespective of corridor width. Therefore we recommend that environmental management practice needs to take a catchment-wide
approach and consider other parameters that may contribute to riparian health so as to optimise the protection of riparian
biodiversity. 相似文献
106.
Christopher Field 《Revue canadienne de statistique》1985,13(3):201-210
The approach to normality of an estimate is displayed graphically by the nonlinearity in the derivative of the log density, and this nonlinearity is related to the accuracy of the normal approximation for the tail area. Using techniques from small-sample asymptotics, an alternate proof of the central limit theorem is given and same indices of tail behavior are examined. 相似文献
107.
108.
109.
Religion and social control have been a sociological concern since Durkheim and Weber, and the relationship between religion and punishment has long been the subject of speculation. However, surprisingly little empirical research exists on the role of religion or religious context in criminal justice, and almost no research on the role of religious context on actual sentencing practices. We conceptualize the potential relationships between religious context and sentencing severity by drawing from the focal concerns and court community perspectives in the sentencing literature and from the moral communities theory developed by Rodney Stark. We suspect that Christian moral communities might shape notions of perceived blameworthiness for court community actors. Such moral communities might also affect notions of community protection—affecting perceptions of dangerousness, or perhaps rehabilitation, and might influence practical constraints/consequences (e.g., local political ramifications of harsh or lenient sentences). We examine these questions with a set of hierarchical models using sentencing data from Pennsylvania county courts and data on the religious composition of Pennsylvania counties from the Associated Religion Data Archives. We find that county Christian religious homogeneity increases the likelihood of incarceration. In addition, Christian homogeneity, as well as the prevalence of civically engaged denominations in a county condition the effects of important legally relevant determinants of incarceration. Furthermore, we find evidence that Christian homogeneity activates the effect of local Republican electoral dominance on incarceration. We argue that Christian homogeneity affects sentencing practices primarily through local political processes that shape the election of judges and prosecutors. 相似文献
110.
Christopher Newell 《Disability & Society》1997,12(5):803-810
Setting the Scene This is the story of research identified by powerful institutional players and a non-disabled researcher as being ethical and non-discriminatory, but held by research subjects with disability to be disrespectful, discriminatory and unethical. It shows the imbalance of power, and limitations of existing Australian provisions in the regulation of research, privacy and anti-discrimination. It also attests to the discursive shaping of notions of justice and ethics by institutional players to suit institutional and corporate ends. This is a true story where only the names of all players have been changed. The author has received consent from the Australian organisation of people with disability to publish this, as they are concerned to articulate some of the issues. Hence, the names are changed, but all other details of this saga remain the same. The account begins in September 1994 and concludes in February 1996. Our assembled cast is a researcher, the State Department of Sport and Recreation, the University of Noname and the organisation 'Humans with Disabilities Inc.' (HWD). 相似文献