Active parental consent in school-based research: how much is enough and how do we get it?

Active parental consent policies have been blamed for low participation rates and selection bias (i.e., loss of "high-risk" youths) in school-based studies. In this article, the authors describe active consent procedures that produced an overall active consent rate of 79% in a sample of more than 4,500 middle school students attending 29 schools in seven cities across the United States. Consent rates, however, varied considerably both within and between schools. To better understand factors associated with active parental consent rates, the authors examined district-level, school-level, and teacher-specific effects on consent rates.     

The Measurement of Non-economic Inequality in Well-Being Indices

This paper is a critical review of composite well-being indices that account for inequality. Many well-being indices build upon the idea that while income and wealth are important, they do not constitute a person’s actual quality of life. However, first of all, the analysis finds that while well-being indices aim to go “beyond GDP” and other primarily economic indicators, many of them, unfortunately, do not focus on inequality at all. Secondly, most indices which include inequality in their measurement, only account for economic inequality. Thirdly, the article finds that the most comprehensive wellbeing index in terms of inequality is the Inequality-adjusted Human Development Index which adjusts for economic, health and education inequality. This article finds that well-being indices should make further strides to ensure the capture of non-economic inequality in terms of education and health.     

基于路标工具集的技术管理

战略思考既是宏观层次的"艺术",也是长远成功的必备条件.目前,战略思考已和微观层面的生产计划管理和产品发展管理产生了直接的联系.生产计划管理和产品发展管理都是充分发挥创新和其他智力资产杠杆作用的途径.任何宏观或徽观的方法本身都不具有充分应对今天高速增长的,以知识为基础的工业多变环境的作用.本文指出通过对企业传统价值链模型的改进和技术路标工具的应用,可以得到对适用于中等或大型技术主导型企业的"技术管理"战略和技术同盟的深入了解.本文中使用了MATI项目中的分析工具和理论构建,MATI项目是由美国制造科学国家中心主办,各主要企业,大学以及有关政府机构共同合作,分析技术和相关组织过程的战略管理的项目.读者需要明确的是MATI项目仍在进行之中,这些理论构建是建立在初始材料和过程扫描的基础之上的,而并非项目组的结论.     

Ranked sparsity: a cogent regularization framework for selecting and estimating feature interactions and polynomials

AStA Advances in Statistical Analysis - We explore and illustrate the concept of ranked sparsity, a phenomenon that often occurs naturally in modeling applications when an expected disparity exists...