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171.
172.
Housing choice vouchers provide low‐income households with additional income to spend on rental housing in the private market. The assistance vouchers provide is substantial, offering the potential to dramatically expand the neighborhoods—and associated public schools—that low‐income households can reach. However, existing research on the program suggests that housing choice voucher holders live in neighborhoods with schools that are no better than those accessible to other households with similar incomes. Households, in other words, do not seem to spend the additional income provided by the voucher to access better schools. In this analysis we rely on a large‐scale administrative data set to explore why voucher households typically do not live near to better schools, as measured by school‐level proficiency rates. We combine confidential administrative data from the Department of Housing and Urban Development on 1.4 million housing choice voucher holders in 15 states, with school‐level data from 5,841 different school districts, to examine why the average housing voucher holder does not live near to higher‐performing schools than otherwise similar households without vouchers. Specifically, we use the large‐scale administrative data set to test whether voucher holders living in areas with good schools nearby and slack housing markets move toward better schools when schools become salient for them—that is, when their oldest child becomes school eligible. We take advantage of the thick sample of households with young children provided through our administrative data to implement both a household fixed effects and a regression discontinuity design. Together these analyses shed light on whether voucher households are more likely to move toward better schools when schools are most relevant, and how market conditions shape that response. We find that families with vouchers are more likely to move toward a better school in the year before their oldest child meets the eligibility cutoff for kindergarten, suggesting salience matters. Further, the magnitude of the effect is larger in metropolitan areas with a relatively high share of affordable rental units located near high‐performing schools and in neighborhoods in close proximity to higher‐performing schools. Results suggest that, if given the appropriate information and opportunities, more voucher families would move to better schools when their children reach school age.  相似文献   
173.
Entomological protocols for aging blowfly (Diptera: Calliphoridae) larvae to estimate the time of colonization (TOC) are commonly used to assist in death investigations. While the methodologies for analyzing fly larvae differ, most rely on light microscopy, genetic analysis, or, more rarely, electron microscopy. This pilot study sought to improve resolution of larval stage in the forensically important blowfly Chrysomya rufifacies using high‐content fluorescence microscopy and biochemical measures of developmental marker proteins. We established fixation and mounting protocols, defined a set of measurable morphometric criteria and captured developmental transitions of 2nd instar to 3rd instar using both fluorescence microscopy and anti‐ecdysone receptor Western blot analysis. The data show that these instars can be distinguished on the basis of robust, nonbleaching, autofluorescence of larval posterior spiracles. High‐content imaging techniques using confocal microscopy, combined with morphometric and biochemical techniques, may therefore aid forensic entomologists in estimating TOC.  相似文献   
174.
Young people who grow up in a violent family context are more vulnerable to become victims of sexual aggression outside the family context. The present study contributes to the understanding of the mechanisms that explain this link among young women by looking at the mediating role of sexual exposure behavior and target vulnerability. Data were used from an online survey among 237 young women aged 16 to 26 (M?=?21.0 years, SD?=?2.75). Experiencing violence from (one of) the parents and to a lesser extent witnessing interparental violence were related to an elevated risk for sexual victimization. Witnessing interparental violence was related to increased target vulnerability but this factor did not mediate the link with sexual victimization. Experiencing parental violence was related to both increased sexual exposure behavior and increased target vulnerability and these factors did mediate the link with sexual victimization.  相似文献   
175.
The high stress environment of law enforcement places officers at risk for a variety of mental and physical health problems; however, officers are reluctant to seek out treatment. The purpose of this study was to identify which factors associated with law enforcement officers had predictive value in the level of stigma perceived in seeking mental health treatment by currently employed, certified peace officers in Arizona. The factors included sex, age, race/ethnicity, years employed as an officer, size of the department, current rank/position within the department, the type of government operating the agency, and payment of union dues. The study included 454 participants. Participation included the completion of demographic data, the Self-Stigma of Seeking Psychological Help (SSOSH), and the Perceptions of Stigmatization by Others for Seeking Help (PSOSH). Using standard multiple regression, the most significant finding was the relationship between the size of the department and levels of stigma (p = .014); such that, the size was inversely related to the levels of perceived stigma. As the agency size increased, the perceptions of stigma decreased. Such a finding has several implications for law enforcement agencies related to preparedness and training.  相似文献   
176.
The present research adopts a multiple informant approach to identify victims and perpetrators of cyberbullying. Similar approaches have been successfully applied in the field of traditional bullying, and they are highly relevant for studying cyberbullying as well. Three informants can provide key perspectives on cyberbullying incidents: victims, perpetrators, and bystanders. To collect data on these actors, all eighth-grade students in 11 secondary schools were invited to participate in a survey. In total 1458 respondents completed peer-nomination questions on cyberbullying involvement. The results indicated that the prevalence of cyberbullying varied depending on the type of informants that was consulted. In addition, limited overlap was observed between the reports of different informants, resulting in different profiles of victims and perpetrators, depending on the informants that identified them. In sum, different informants tended to have divergent views on cyberbullying, which has important implications. It warrants accurate reporting and critical reflection on the sources of data in cyberbullying research. Moreover, it demonstrates the need to study a more diverse set of informants to advance the understanding of cyberbullying and to enhance prevention efforts.  相似文献   
177.
This is the second of two articles on the risks of advocacy bias in the reporting of research findings when boundaries are blurred between social science research and advocacy in the pursuit of public policy. In the first article we identify common ways in which social science researchers and reviewers of research—wittingly or unwittingly—can become advocates for ideological positions and social policies at the expense of being balanced reporters of research evidence. The first article discusses the difference between truth in social science and truth in law and identifies a range of scholar‐advocacy strategies that bias research evidence, illustrated by recent debates about overnight parenting of infants and toddlers. In this second article we show how biased research evidence by scholar advocates results in increased confusion and controversy that diminishes the credibility of all parties and stalemates progress in the field, using a case illustration of intimate partner violence in family court. We also show how adherence to scientific methods prevents the misuse of research and suggest a number of collaborative, integrative measures that can help transcend the adversarial stalemate. In a look to the future we consider some unbiased, standardized ways of assessing the strength and generalizability of research evidence.  相似文献   
178.
Anti-immigrant parties in Europe: Ideological or protest vote?   总被引:1,自引:0,他引:1  
Abstract. In this article we address the question whether or not the votes for anti–immigrant parties can be considered as protest votes. We define protest votes by the motives underlying electoral choices, building on earlier research done by Tillie (1995) and Van der Eijk & Franklin (1996). That research showed that ideological proximity and party size are the best predictors of party preference. On this basis we designed a typology of motives for party choice and how these motives would manifest themselves empirically. Analyzing the 1994 elections for the European Parliament for seven political systems we show that anti–immigrant parties attract no more protest votes than other parties do, with only one exception: the Dutch Centrumdemocraten. Voting for anti–immigrant parties is largely motivated by ideological and pragmatic considerations, just like voting for other parties. In addition, (negative) attitudes towards immigrants have a stronger effect on preferences for anti–immigrant parties than on preference for other parties. Social cleavages and attitudes towards European unification are of minor importance as determinants of preferences for anti–immigrant parties. The overall conclusion is that a rational choice model of electoral behavior has strong explanatory power for party preferences in general, but also for the support for anti–immigrant parties in particular.  相似文献   
179.
Exit,voice and loyalty: Analytic and empirical developments   总被引:4,自引:0,他引:4  
Abstract. This paper seeks to reconstruct and revitalize the famous Hirschman framework by providing a comprehensive review of the current use of 'exit, voice and loyalty'. We begin by critically examining Hirchman's original account, and then look at the way his argument has been extended in different fields both conceptually and empirically. We suggest that while advances have been made, the results so far are somewhat disappointing given the perceptiveness of the original insight. We believe this is because his apparently simple schema is more complex than it first appears, and different aspects of exit, of voice, and of empirical foundations of loyalty need to be analytically distinguished in order to produce testable empirical hypotheses about their relationships.  相似文献   
180.
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