It is widely believed that regression models for binary responses are problematic if we want to compare estimated coefficients from models for different groups or with different explanatory variables. This concern has two forms. The first arises if the binary model is treated as an estimate of a model for an unobserved continuous response and the…

The use of "radar charts" is an increasingly popular way to present spatial data in a visually interesting format. Some authors recommend using "filled radar charts" to compare the performance of observational units. Filled radar charts are not appropriate for such comparisons because the size of the area within the polygon is not invariant to the…

School vouchers, particularly since the landmark U.S. Supreme Court ruling on the Cleveland program, are one of the most contentious issues in American education. Seemingly contradictory results across available studies have caused confusion among diverse audiences. The authors suggest that these divergent findings are, in part, due to three…

Global economic transformations have never been as dramatic as in the twentieth century. Most countries have experienced radical changes in the standards of income per capita, technology, fertility, mortality, income inequality and the extent of democracy in the course of the past century. It is the goal of many disciplines--economics, history,…

Reviews three areas of limitations in the comparative evaluations of early intervention alternatives for disabled children presented in this volume: (1) inaccurate outcomes measures; (2) a misconception of parent training programs as representing true family involvement; (3) and the lack of control over the integrity of treatment given study…

Data from the Work History and Attitudes survey of the Social Change and Economic Life research initiative (SCELI) enquiry of 1986-1989 and the first wave of the British Household Panel Survey (BHPS) were analyzed to determine their continuity and comparability with regard to employee attitudes in general and job satisfaction and work centrality…