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121.
After Officer Darren Wilson fatally shot African American teen Michael Brown in August 2014, rioters unleashed their anger on the streets of Ferguson, Missouri. Using content analysis and framing theory, this study analyzed how news organizations covered events in Ferguson on Twitter over the course of a month immediately following the shooting. Protesters were framed as troublemakers; but community leaders were not framed as “rabble-rousers.” Journalists continued to rely on official sources more than alternate sources in spite of criticism of law enforcement and other political elites, but nearly 10% of the coded tweets that relied on official sources included some element of skepticism. Tweets from cable news outlets did not show partisan bias in any significant amount; and traditional legacy news media sources utilized the Twitter platform enhancements—such as article links, photos, links to other content, or hashtags—more than their new digital media counterparts. As Twitter launched #ferguson into the national consciousness, it is quite plausible that the framing of the tweets by news agencies may have molded perceptions of larger issues about the racial health of the nation, established policies of law enforcement, and the challenge of elected leaders to resolve explosive domestic problems. 相似文献
122.
123.
Ginger Phillips MacDonald 《Higher Education》2013,65(2):153-166
Universities articulate their identities during moments of organizational change. The process of development of university identity is herein explored from multiple theoretical strands: (a) industrial/organizational psychology, (b) human development/social psychology, (c) marketing, and (d) postmodern sociological. This article provides an analysis of historic and emergent theories of identity development, suggesting commonalities such as: people seek positive self-identification with their universities; people use comparative like me versus not like me strategies; a view toward history and legacy is common, but need to be balanced by a view that identity is evolutionary, complex, and mutable. A case example of complex identity challenges for branch campuses is presented. 相似文献
124.
John E. Henning Linda J. Rice Danielle E. Dani Ginger Weade Timothy McKeny 《Teacher Development》2017,21(3):388-403
The purpose of the study was to examine the differences among significant changes in the practice of individual teachers. Seventeen US teachers were interviewed about the most successful change in their teaching career. The differences in teacher change were based primarily on the source and impact of the change. The sources of change were divided into two categories: other-initiated or self-initiated. The level of impact was determined in three ways: by whether teachers described a new practice, a new direction, or a change in their beliefs. By organizing according to both the source and impact of the change, four types of change were identified: Response to School Initiatives, Professional Development Initiatives, Student-Centered Changes, and Self-Designed Changes. Self-Designed changes were further distinguished based on the time required for the change process. Implications for developing new strategies to foster teacher development are discussed. 相似文献
125.
Nonrecursive structural equation models generally take the form of feedback loops, involving 2 latent variables that are connected by 2 unidirectional paths, 1 starting with each variable and terminating in the other variable. Nonrecursive models belong to a larger class of path models that require the use of instrumental variables (IVs) to achieve model identification. Prior research has focused on SEM parameter estimation with IVs when indicators were continuous and normally distributed. Much less is known about how estimators function in the presence of categorical indicators, which are commonly used in the social sciences, such as with cognitive and affective instruments. In this study, there was specific interest in comparing the 2-stage least squares (2SLS) estimator and its categorical variant to other recommended estimators. This study compares the performance of several estimation approaches for fitting structural equation models with categorical indicator variables when IVs are necessary to obtain proper model estimates. Across conditions, 1 extension of the nonlinear 2SLS (N2SLS) approach, the nonlinear 3-stage least squares (N3SLS), which accounts for correlated errors among regressors within each model (as does the N2SLS), as well as correlations of errors across models, which N2SLS does not, appears to work the best among methods compared. 相似文献
126.
Jennifer Gore Kathryn Holmes Max Smith Leanne Fray Patrick McElduff Natasha Weaver 《高等教育研究与发展》2017,36(7):1383-1400
Demand for higher education in Australia has doubled since 1989, increasing the number of students from diverse social, economic and academic backgrounds. Equity targets have seen a proliferation of programs and interventions aimed at encouraging school students, particularly those from low socio-economic status backgrounds, to participate in higher education. However, little is known about the specific occupational interests of school students upon which targeted strategies might effectively be designed and implemented. This paper examines school students’ aspirations for specific careers that require a university education, in relation to student background and school-related variables. The analysis draws from a study of 6492 students from Years 3 to 12 in 64 New South Wales public schools. We found a complex array of factors relating to interest in different careers. Year level at school, gender and prior achievement were stronger predictors across many careers than factors such as SES, Indigenous status and school location. We argue that rather than taking a one-size-fits-all approach to encouraging participation in higher education, outreach activities should be targeted to take account of student diversity and inequalities that foster differing aspirations. 相似文献
127.
Single subject (SS) designs are popular in educational and psychological research. There exist several statistical techniques designed to analyze such data and to address the question of whether an intervention has the desired impact. Recently, researchers have suggested that generalized additive models (GAMs) might be useful for modeling nonlinear effects that are common with SS designs. This study sought to extend the use of GAM from SS to a research design in which individuals may be placed in separate groups and receive different interventions. Results of the simulation study found that using a mixed model form of GAM (GAMM) resulted in higher power for detecting actual effects in the population than was true for either GAM or a Bayesian GAM estimator. Thus, GAMMs are recommended for use with SS designs when interventions are expected to induce nonlinear relationships between time and the outcome variable and individuals receive different treatments. 相似文献
128.
Ginger D. Fenton Luke F. LaBorde Rama B. Radhakrishna J. Lynne Brown Catherine N. Cutter 《Journal of Food Science Education》2006,5(3):45-50
ABSTRACT: Computer-based training is increasingly favored by food companies for training workers due to convenience, self-pacing ability, and ease of use. The objectives of this study were to determine if personal hygiene training, offered through a computer-based method, is as effective as a face-to-face method in knowledge acquisition and improved attitude toward food safety. Employees from four food processing facilities ( n = 94) were randomly assigned to a control group, a face-to-face training group, or a computer-based training group. Evaluation instruments consisted of a pretest and a posttest to measure knowledge gain, a step scale to measure attitude after training and retrospectively before training, and a brief set of interview questions. Results for both treatments and the control group indicated increases in knowledge. Analysis of the posttest scores, when controlling for the pretest scores, indicated the difference was significant ( P ≤ 0.05); however, post hoc analysis did not indicate which treatment was superior. There was a significant increase in attitude scores for both groups using paired t -tests, although the difference between groups was not significant when controlling for attitude scores before training. Issues that may limit application of the technology used in this study include low literacy and language barriers among employees, and time constraints within companies. These and other variables should be taken into account in future research studies addressing comparisons of training methods. This study is the first to demonstrate the effectiveness of computer-based training aimed at food handlers who work in food processing establishments. 相似文献
129.
Educational research is being increasingly challenged for not contributing effectively enough to the improvement of policy and practice worldwide. Critics call for more relevant, cumulative, accessible and cost-effective studies. This paper examines the implications of this contemporary debate for small states, as they engage with increasingly powerful international development agenda's while dealing with their own distinctive educational needs and priorities. Specific attention is given to different conceptions and traditions of educational research; to the potential of participatory and partnership models; to the process of educational research and evaluation capacity building; to the sociopolitical implications of 'genuine' North-South partnerships; and to the lessons that can be learned by all engaged in educational research from the comparative and international experience. 相似文献
130.
We examined the information processing capabilities of children diagnosed with the inattentive subtype of attention-deficit/hyperactivity disorder (ADHD) who had been characterized as having a sluggish cognitive tempo. Children referred for school-related problems (n = 81) and nonreferred community controls (n = 149) participated. Of the referred children, 24 met criteria for ADHD, 42 met criteria for reading disability (RD), and 9 of these were comorbid for RD and ADHD. Children with ADHD differed from those without ADHD on a visual search task but not on an auditory processing task; the reverse was true for children with RD. Decomposition of the visual search task into component operations demonstrated that children in the ADHD group had a slow processing rate that was not attributable to inattention. The children with ADHD were not globally poor at information processing or inattentive, but they demonstrated diminished speed of visual processing. 相似文献