Missing values that fail to be appropriately accounted for may lead to reduced statistical power, biased estimators, reduced representativeness of the sample, and incorrect interpretations and conclusions (Gorelick, 2006). The current study provided an ontological perspective of data manipulation by explaining how statistical results can…

A major obstacle to developing evidenced-based policy is the difficulty of implementing randomized experiments to answer all causal questions of interest. When using a nonexperimental study, it is critical to assess how much the results could be affected by unmeasured confounding. We present a set of graphical and numeric tools to explore the…

Analysis of United Kingdom Labor Force Survey data identified inadequacies and ambiguities that change prevailing interpretations. Policy development could benefit from improvements in collection and interpretation of data on training, as well as from more research on its costs and benefits. (SK)

The economic transformation of eastern Europe raises issues in the collection and interpretation of national statistics on output measures, price measures, labor force, household income, and private enterprise. The U.S. Bureau of Labor Statistics is assisting eastern European statistical agencies in rebuilding their systems. (SK)

This report describes research that Mathematica Policy Research, Inc. (MPR) has conducted for the U.S. Department of Agriculture (USDA), Food and Nutrition Service (FNS), to develop methods to track the use of "competitive foods" in schools over time. Competitive foods are foods from a la carte cafeteria sales, vending machines, school stores,…

This report details results of an early 1991 national survey of federal liaisons for state child abuse and neglect programs. Nationwide, child abuse reports increased 31% between 1985 and 1990. An estimated 39 out of every 1,000 U.S. children were reported as victims of child maltreatment, an average 4% increase over the previous year which is a…

In response to the current intensified public interest in education, some professional organizations have undertaken to draft public policy responses. These responses are constrained by a variety of issues. When practitioner task forces analyze policy under time constraints, they face issues in policy definition, and the definition used affects…

The factors for an effective administrative task force are examined in this report on the Syracuse school superintendent's Issue Analysis Team. The team, composed of voluntary potential administrators, acts as a special task force to facilitate informed decision making by the school superintendent. Topics discussed are member selection, role…

Identifies situations in which there is disparity between coefficients calculated from aggregate versus individual level data. Determines the magnitudes of these discrepancies, and discusses the implications for test score reporting and policy decisions based in whole or in part on the aggregate level relationships and discrepancies identified.…

Targeted to mental retardation/developmental disability (MR/DD) and vocational rehabilitation agencies, developmental disabilities councils, consumer and advocate groups, and protection and advocacy programs, this manual is designed to assist in the development of state-level data systems responsive to current accountability requirements. It also…

Deliberations about social policy often center on estimates of harm or benefit generated by different interest groups. Problems in what is measured and how it is measured are illustrated by a discussion of research into sexual abuse and rape. Advocacy research is an unreliable foundation for social policy formation. (SLD)

This report examines issues related to the performance indicators used for international comparisons of Australia's vocational education and training (VET) system. Chapter 2 examines main sources of international comparisons of VET and main features of indicator frameworks used for comparisons. Chapter 3 presents an outline of these two main…