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Vivian Cook 《社会征候学》2015,25(1):81-109
This paper describes the materiality of street signs, an unappreciated and ubiquitous type of everyday written text. Drawing on social semiotics, linguistic landscapes and writing system research, it uses a categorisation of social roles associated with street signs and of the functions of street signs applied to street signs in Newcastle upon Tyne, with some other wider examples. The materials are divided into: stone and metal signs, which use capitals and archaic letters, convey permanence and quality, and are locating in function; signs handwritten or printed on paper, which also use capitals, convey temporary status and novelty and are mostly informing; painted signs, which often use lower case, have highly individual letter forms to express identity, and are usually informing; other materials ranging from glass to snow, expressing diverse ideas of permanence. The conclusion is that the meaning of street signs depends in part on the materials they are made of, particularly to convey permanence and identity. 相似文献
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This study investigated the influences of ethnicity, socioeconomic status, and ethnic peer group composition on awareness and internalization of socially sanctioned standards of appearance using the Sociocultural Attitudes Towards Appearance Questionnaire (SATAQ). The researchers surveyed a convenience sample of 208 adolescent females at an ethnically diverse urban high school. Statistical analyses found that ethnicity influenced awareness of socially sanctioned standards of appearance but the effects of ethnicity varied by level of caregiver educational attainment. Ethnicity and caregiver educational attainment together accounted for variance in the internalization of these standards. Moreover, African American girls with ethnically heterogeneous peer groups had significantly higher awareness and internalization scores than those without mixed friends. These findings highlight the importance of multiple ecological factors in assessing risk for disturbed body image and eating disorders. Ethnicity remains an important predictor of disturbed body image but should be treated as a dynamic, rather than a fixed risk factor. 相似文献
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The legal approach to abortion is evolving from criminal prohibition towards accommodation as a life-preserving and health-preserving option, particularly in light of data on maternal mortality and morbidity. Modern momentum for liberalization comes from international adoption of the concept of reproductive health, and wider recognition that the resort to safe and dignified healthcare is a major human right. Respect for women's reproductive self-determination legitimizes abortion as a choice when family planning services have failed, been inaccessible, or been denied by rape. Recognition of women's rights of equal citizenship with men requires that their choices for self-determination be legally respected, not criminalized. 相似文献
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Rachel F. Rodgers Elizabeth Donovan Tara Cousineau Kayla Yates Kayla McGowan Elizabeth Cook Alice S. Lowy Debra L. Franko 《Journal of youth and adolescence》2018,47(7):1363-1372
Mobile interventions promoting positive body image are lacking. This study presents a randomized controlled evaluation of BodiMojo, a mobile application (app) intervention grounded in self-compassion to promote positive body image. A sample of 274 adolescents, mean (SD) age?=?18.36 (1.34) years, 74% female, were allocated to a control group or used BodiMojo for 6 weeks. Appearance esteem, body image flexibility, appearance comparison, mood, and self-compassion were assessed at baseline, 6, and 12 weeks. Significant time by group interactions emerged for appearance esteem and self-compassion, with appearance esteem and self-compassion increasing in the intervention relative to the control group. These findings provide preliminary support for BodiMojo, a cost-effective mobile app for positive body image. 相似文献
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THE INTERNAL AND EXTERNAL VALIDITY OF THE REGRESSION DISCONTINUITY DESIGN: A META‐ANALYSIS OF 15 WITHIN‐STUDY COMPARISONS 下载免费PDF全文
Duncan D. Chaplin Thomas D. Cook Jelena Zurovac Jared S. Coopersmith Mariel M. Finucane Lauren N. Vollmer Rebecca E. Morris 《Journal of policy analysis and management》2018,37(2):403-429
Theory predicts that regression discontinuity (RD) provides valid causal inference at the cutoff score that determines treatment assignment. One purpose of this paper is to test RD's internal validity across 15 studies. Each of them assesses the correspondence between causal estimates from an RD study and a randomized control trial (RCT) when the estimates are made at the same cutoff point where they should not differ asymptotically. However, statistical error, imperfect design implementation, and a plethora of different possible analysis options, mean that they might nonetheless differ. We test whether they do, assuming that the bias potential is greater with RDs than RCTs. A second purpose of this paper is to investigate the external validity of RD by exploring how the size of the bias estimates varies across the 15 studies, for they differ in their settings, interventions, analyses, and implementation details. Both Bayesian and frequentist meta‐analysis methods show that the RD bias is below 0.01 standard deviations on average, indicating RD's high internal validity. When the study‐specific estimates are shrunken to capitalize on the information the other studies provide, all the RD causal estimates fall within 0.07 standard deviations of their RCT counterparts, now indicating high external validity. With unshrunken estimates, the mean RD bias is still essentially zero, but the distribution of RD bias estimates is less tight, especially with smaller samples and when parametric RD analyses are used. 相似文献
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Blind proficiency testing is ideal for testing crime laboratory personnel because the elements of analyst bias and anticipation are removed. However, sending proficiency tests through the laboratory system as real casework is difficult. The substantial challenges with preparing and administering blind tests may prevent laboratory managers from initiating blind testing. In 2015, the Harris County Institute of Forensic Sciences committed to improving its crime laboratory’s proficiency testing program by adding blind tests. The goal was to test the whole system, from evidence receipt to report release. With careful planning, trial-and-error, and ongoing assessment of available resources, not only was the program proven to be feasible, but there was also clear understanding of how to optimize our program. In this article, we share our experiences, lessons learned, and program details to assist other forensic service providers with developing their own blind testing programs, which would ultimately lead to improved quality assurance. 相似文献