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In an economic model of retirement behavior, a continuous dependent variable was required; the variable could only be estimated discretely with error, however. Parameter estimates using this dependent variable and ordinary least squares regression are inefficient. In th is paper, we develop a maximum likelihood procedure which adjusts for this heteroscedasticity. 相似文献
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W.J. Anderson 《统计学通讯:理论与方法》2013,42(12):4533-4538
A simple proof of Siegmund's result on the relation between dual q-matrices and dual transition functions for Markov chains is given. A byproduct is a uniqueness result for minimal solutions of stochastically monotone q-matrices. 相似文献
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Robert W. Strack Karyn Kai Anderson Camelia M. Graham Naomi Tomoyasu 《Child and Adolescent Social Work Journal》2007,24(3):261-283
Analysis reported here examined youth in residential group home placements in order to better understand how sexual behaviors,
drug use, and environmental experiences differ by race and gender subgroups. Data were collected from 336 youth aged 14–21
residing in one of 41 group homes in Maryland. Chi square and logistic regression analyses were done to determine differences
on study variables among the race-gender groupings. Results demonstrate not only significant health concerns overall but notable
differences were also found between race-gender subgroups. Findings suggest that found race-gender subgroup differences might
be informative for tailoring programming for youth of residential group home settings. 相似文献
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Audrey Block G. Nicholas Braucht Richard Crispino Robert E. Drake Susan M. Essock Richard Hough Michael W. Kirby Claudia Krueger Jon Nachison Marjorie Robertson Stanley Sacks Graham Staines 《Journal of Social Distress and the Homeless》1997,6(4):261-274
The Collaborative Demonstration Program for Homeless Individuals is providing an opportunity for several community agencies in the United States to explore innovative intervention and treatment strategies to address the needs of homeless people with co-occurring (mental illness and substance abuse) disorders. This cooperative agreement, funded jointly by the Center for Mental Health Services (CMHS) and the Center for Substance Abuse Treatment (CSAT), is a $3 million project supporting programs in various community agencies to develop, document, and evaluate programs for persons who are homeless with co-occurring disorders to be used as models in other communities. The program models include: Assertive Community Treatment, Psychosocial Rehabilitation, Therapeutic Community, and an integrated treatment model. The first phase of the two-phase project funded 16 programs in the U.S. to develop manuals within their primary treatment modalities for homeless people with co-occurring disorders. For Phase II of the project, six of the 16 model programs were competitively selected to demonstrate program impact through formal program evaluation efforts. The data derived from the various projects will be compiled into a compendium of information for state agencies and community service providers throughout the U.S. 相似文献
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The ongoing HIV/AIDS pandemic in southern Africa continues to manifest itself in unexpected ways. While the consequences of the disease appear straightforward in some aspects—e.g., medical, labor, cost—in other respects the repercussions, while large, are nonetheless highly nuanced and can be counterintuitive. This paper reports on the intersection of HIV/AIDS, migration, livelihood adaptation, land tenure, and forest conservation, to outline how adaptation to the pandemic has reworked significant aspects of land tenure to result in increased forest conservation in southern Zambia in the near to medium-term. The research uses a combination of ethnography, case studies, household survey and spatial analyses and finds that HIV/AIDS is used in customary legal settings to enhance land access. We also draw links to practical and theoretical implications of the relationship between HIV/AIDS, land tenure, and deforestation in Sub-Saharan Africa. 相似文献