The Ebb and Flow of Environmentalism

This essay examines the pattern of ebb and flow in the environmental movement in the United States. Although the movement has experienced periods of expansion and contraction over the last century, environmentalism has sustained significant mobilization with the evolution of its organizational forms and tactics. Mass demonstrations and other forms of public protest defined the emergence of the modern environmental movement in the 1960s and early 1970s, and grassroots action remains important, particularly in response to the urgency of climate change. However, the movement has also relied increasingly on institutionalized organizational forms and conventional tactics such as litigation and lobbying. Some critics argue that decentralized networks and disruptive tactics are essential for inspiring a new era of impassioned environmental activism, while others contend that the complexity of current environmental problems requires more formalized structures and focused legislative advocacy. We conclude that the diversity of organizational forms and activities in the environmental movement has maintained the movement over many decades, and that this diversity can aid in effecting comprehensive change.     

PROBLEMS WITH BINOMIAL TWO-SIDED TESTS AND THE ASSOCIATED CONFIDENCE INTERVALS

Confidence intervals for parameters of distributions with discrete sample spaces will be less conservative (i.e. have smaller coverage probabilities that are closer to the nominal level) when defined by inverting a test that does not require equal probability in each tail. However, the P‐value obtained from such tests can exhibit undesirable properties, which in turn result in undesirable properties in the associated confidence intervals. We illustrate these difficulties using P‐values for binomial proportions and the difference between binomial proportions.     

Measurement bias and multidimensionality; an illustration of bias detection in multidimensional measurement models

Restricted factor analysis can be used to investigate measurement bias. A prerequisite for the detection of measurement bias through factor analysis is the correct specification of the measurement model. We applied restricted factor analysis to two subtests of a Dutch cognitive ability test. These two examples serve to illustrate the relationship between multidimensionality and measurement bias. We conclude that measurement bias implies multidimensionality, whereas multidimensionality shows up as measurement bias only if multidimensionality is not properly accounted for in the measurement model.     

Volunteers in charity retailing: Recruitment and training

Volunteer activity has received considerable research attention in recent years. There is, however, little academic research to date into volunteer issues in charity retailing. This article examines volunteers in charity shops and reports, in particular, on how volunteers are recruited and trained in the charity retailing. This article examines volunteers in charity shops and reports, in particular, on how volunteers are recruited and trained in the charity sector. The authors conclude that in an increasingly competitive market, charity retailers need to reexamine their recruitment and training policies in order to attract and retain a diverse core of volunteers.     

Preface

Sociological Forum -