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61.
Thomas D. Cook William R. Shadish Vivian C. Wong 《Journal of policy analysis and management》2008,27(4):724-750
This paper analyzes 12 recent within‐study comparisons contrasting causal estimates from a randomized experiment with those from an observational study sharing the same treatment group. The aim is to test whether different causal estimates result when a counterfactual group is formed, either with or without random assignment, and when statistical adjustments for selection are made in the group from which random assignment is absent. We identify three studies comparing experiments and regression‐discontinuity (RD) studies. They produce quite comparable causal estimates at points around the RD cutoff. We identify three other studies where the quasi‐experiment involves careful intact group matching on the pretest. Despite the logical possibility of hidden bias in this instance, all three cases also reproduce their experimental estimates, especially if the match is geographically local. We then identify two studies where the treatment and nonrandomized comparison groups manifestly differ at pretest but where the selection process into treatment is completely or very plausibly known. Here too, experimental results are recreated. Two of the remaining studies result in correspondent experimental and nonexperimental results under some circumstances but not others, while two others produce different experimental and nonexperimental estimates, though in each case the observational study was poorly designed and analyzed. Such evidence is more promising than what was achieved in past within‐study comparisons, most involving job training. Reasons for this difference are discussed. © 2008 by the Association for Public Policy Analysis and Management. 相似文献
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This article argues that an Islamist militant group with a relatively homogenous ethnic make-up is more likely to be supported by those of the same ethnicity even if the group makes no reference to and even downplays the importance of ethnicity. Using survey data from an original survey carried out in Pakistan in 2013, with 7,656 respondents, this hypothesis is tested in a multiple regression analysis of support for the Pakistani Taliban. The results demonstrate that co-ethnicity between the respondent and the Islamist militant group is the most important predictor of support for the militant group. 相似文献
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William Bernet 《Family Court Review》2020,58(2):362-367
The author wrote an article, “Parental Alienation and Misinformation Proliferation,” for this Special Issue of Family Court Review, which is devoted to various aspects of parental alienation (PA). This short article is a response to the article by Milchman, Geffner, and Meier, which discussed my article and other contributions to the Special Issue. All of these articles represent an attempt by the Editors of the Special Issue to promote “dialogue” among writers who have different perspectives regarding parental alienation. In my view, this is a misguided endeavor, since the publication of cascading criminations, recriminations, and re‐recriminations simply creates confusion and consternation for the readers of Family Court Review. This new article offers an alternative approach for creating constructive dialogue among PA‐promoters and PA‐detractors, that is, convene a face‐to‐face discussion of these individuals and encourage them to write an article together in which they jointly explain their various perspectives regarding PA. 相似文献
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Latinx youth living in the United States reside in a myriad of cultural and neighborhood contexts, yet little is known regarding how cultural values influence behavior problems across neighborhood contexts. Using a person–environment fit framework, the present study explored the degree to which youth cultural values were associated with their externalizing problems, and the degree to which this association was shaped by their neighborhood’s socioeconomic status (SES), and Latinx and immigrant concentration. The sample comprised of 998 Latinx youth (Female?=?54.2%), ages 10 to 14 years old (Mage?=?11.8), from three large United States metropolitan areas. Multilevel modeling methods indicated that increased fit between youth cultural values and neighborhood Latinx and immigrant concentration was associated with fewer externalizing problems, but only in higher SES neighborhoods. The results support the importance of studying social determinants of Latinx youth behavioral health, and provide implications for both neighborhood-level and individual-level prevention and intervention programming. 相似文献
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Political Behavior - As levels of residential economic segregation increase in the United States, politicians may have greater incentives to focus their attention on the demands of those living in... 相似文献