Interviewing undocumented immigrants: methodological reflections based on fieldwork in Mexico and the U.S

"This article discusses data collection methods and basic issues of research strategy in field studies of unapprehended illegal immigrants living in the United States. It suggests ways to increase the reliability and validity of interview responses. Necessary modifications in format and style of interviews are described. An annotated bibliography of recent field studies of undocumented immigrants is provided."     

Birds of a feather petition together? Characterizing e-petitioning through the lens of platform data

E-petitioning platforms are increasingly popular in Western democracies and considered by some lawmakers and scholars to enhance citizen participation in political decision-making. In addition to social media and other channels for informal political communication, online petitioning is regarded as both a useful instrument to afford citizens a more important role in the political process and allow them to express support for issues which they find relevant. Building on existing pre-internet systems, e-petitioning websites are increasingly implemented to make it easier and faster to set up and sign petitions. However, little attention has so far been given to the relationship between different styles of usage and the causes supported by different groups of users. The functional difference between signing paper-based petitions vs. doing so online is especially notable with regard to users who sign large numbers of petitions. To characterize this relationship, we examine the intensity of user participation in the German Bundestag’s online petitioning platform through the lens of platform data collected over a period of five years, and conduct an analysis of highly active users and their political preferences. We find that users who sign just a single petition favor different policy areas than those who sign many petitions on a variety of issues. We conclude our analysis with observations on the potential of behavioral data for assessing the dynamics of online participation, and suggest that quantity (the number of signed petitions) and quality (favored policy areas) need more systematic joint assessment.     

Objective Bayesian analysis of counting experiments with correlated sources of background

Searches for faint signals in counting experiments are often encountered in particle physics and astrophysics, as well as in other fields. Many problems can be reduced to the case of a model with independent and Poisson-distributed signal and background. Often several background contributions are present at the same time, possibly correlated. We provide the analytic solution of the statistical inference problem of estimating the signal in the presence of multiple backgrounds, in the framework of objective Bayes statistics. The model can be written in the form of a product of a single Poisson distribution with a multinomial distribution. The first is related to the total number of events, whereas the latter describes the fraction of events coming from each individual source. Correlations among different backgrounds can be included in the inference problem by a suitable choice of the priors.     

Supervision als Fortbildungsangebot für stellvertretende schulleiter

Supervision as further education of vice-headmasters Our offer of further education aims at an improvement of executive activities of viceheadmasters. With the help of their first experiences with our concept they’ll become acquainted with the various processes of change in schools and can use it as an opportunity to support them. That’s our contribution to the development of the executive personnel in the schools of Sachsen-Anhalt.     

Interest Group Participation in Rule Making: A Decade of Change

Ten years ago we completed a survey that examined interest groupparticipation in the rule-making process. At the time, it wasthe first major study to examine the role of interest groupsin one of the most important policy-making venues in our democraticsystem. This article reexamines interest group participationin rule making a decade later. We focus most of the study oncomparisons in how organizations access rule-making agencies,what techniques are used to lobby agencies, and the perceivedeffectiveness of these techniques by the organizations themselves.In addition, given the relatively new phenomenon of e–rulemaking and the increase of other electronic communication techniques,we open an examination of interest groups use of these formsof communications and their implications. We find that rulemaking continues to be a primary concern of organizations tryingto influence federal public policy, even as they have focusedmore on campaign and grassroots activities. In some ways, theseefforts are more important now than they were ten years ago.     

Evaluation of single and mixed verbal operant arrangements for teaching mands and tacts

The purpose of this series of experiments was to evaluate the effects of mixed mand-tact arrangements on the acquisition of mands and tacts in preschool-aged children. In Experiment 1, the effects of three training arrangements (mand-only training, tact-only training, and mand-tact training) were investigated with 3 typically developing children. Rates of acquisition in single (mand-only and tact-only) versus mixed (mand-tact) presentation were comparable, in contrast to earlier investigations. Experiment 2 attempted to clarify the equivocal findings of Experiment 1 by directly replicating the Carroll and Hesse (1987) investigation with 2 typically developing children. Results again demonstrated no clear benefit of mixed verbal operant training on tact acquisition. In Experiment 3, these same arrangements were evaluated with a boy with autism and included assessments to determine that a relevant establishing operation was in effect prior to each mand training session. Experiment 3 again failed to demonstrate the facilitative effects of mand-tact training on the acquisition of mands or tacts. Taken together, the data from these three experiments fail to support the improved efficiency of mand-tact training suggested by prior studies. Findings are discussed in the context of future research investigating mixed verbal operant arrangements.     

A weighted test of internal symmetry

This study examines extensions of McNemar's Test with multinomial responses, and proposes a linear weighting scheme, based on the distance of the response change, that is applied to one of these extensions (Bowker's test). This weighted version of Bowker's test is then appropriate for ordinal response variables. A Monte Carlo simulation was conducted to examine the Type I error rate of the weighted Bowker's test for a cross-classification table based on a five-category ordinal response scale. The weighted Bowker's test was also applied to a data set involving change in student attitudes towards mathematics. The results of the weighted Bowker's test were compared with the results of Bowker's test applied to the same set of data.     

China's tobacco industry's communication practices: Paradoxes and proposals for public policymaking

The People's Republic of China's expanding tobacco-control efforts call for additional, urgent government action on two major fronts: (a) conducting comprehensive health-communication campaigns on the clinical and economic effects of tobacco use; and (b) requiring major policy changes in the (structural and administrative) relationships between the State Tobacco Monopoly Administration (STMA) and the industry at large, that is, primarily, the China National Tobacco Company (CNTC). China's signing (in 2003) and ratifying (in 2005) the World Health Organization Framework Convention on Tobacco Control (WHO FCTC) place it in a position to adopt some of the anti-smoking measures common in some developed nations. Even though the country's tobacco industry acknowledges publicly health concerns over its products, it engages in communication practices that are paradoxical, in that they circumvent public-health initiatives and the expanding regulatory regimes of product-risk reduction even as the government promotes tobacco use. That paradox calls for three public-policymaking proposals: to conduct more comprehensive, nationwide health-communication campaigns; to use legislation to reduce tobacco use; and to restructure the tobacco industry.