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In recent years, the advent of low-cost digital and mobile devices has led to a strong expansion of social interventions, including those that try to improve student learning and literacy outcomes. Many of these are focused on improving reading in low-income countries, and particularly among the most disadvantaged. Some of these early efforts have been called successful, but little credible evidence exists for those claims. Drawing on a robust sample of projects in the domain of mobiles for literacy, this article introduces a design solution framework that combines intervention purposes with devices, end users, and local contexts. In combination with a suggested set of purpose-driven methods for monitoring and evaluation, this new framework provides useful parameters for measuring effectiveness in the domain of mobiles for literacy.  相似文献   
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The low achievement of Native American students, as measured by standardized tests, results from a number of factors, including the lack of cultural relevance of curriculum materials used in their instruction. Using a pretest–posttest control group design, Native American students in Bureau of Indian Affairs schools in Grades 4–8 who were taught science using culturally relevant materials achieved significantly higher and displayed a significantly more positive attitude toward Native Americans and science than comparable students who were taught science without the culturally relevant materials. It is suggested that when educators of Native Americans teach science, they should use materials that incorporate frequent reference to Native Americans and science.  相似文献   
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Private for-profit higher education has been rapidly expanding in developing countries worldwide since the early 1990s. This global trend has been particularly evident in Ethiopia, where only three public universities existed until 1996. By 2005, about 60 private for-profit higher education institutions had been founded in Ethiopia. This has led to mixed feelings among the Ethiopian public. While some laud the opportunities and advantages these new institutions bring, others are apprehensive that the quality of education might be compromised by an expansion motivated by monetary gain. This article sheds light on these paradoxes and provides suggestions for policy and practices.  相似文献   
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  总被引:2,自引:0,他引:2  
Researchers often ask subjects to commit considerable time and effort to completing tasks that are not especially enjoyable. In a multistage investigation of sixth-grade boys and their families, we hypothesized that boys who were prone to high levels of distress (i.e., anxiety, depression, low self-esteem, and low well-being) but only low or moderate levels of self-restraint (i.e., consideration of others, impulse control, suppression of aggression, and responsibility) would be particularly unlikely to agree to participate. Consistent with this hypothesis, boys from 33 classrooms who were nominated by their peers as high in distress and moderate or low in self-restraint were significantly less likely than other boys to take part in an in-class survey. In addition, the families of boys who scored high in distress and moderate or low in self-restraint on the Weinberger Adjustment Inventory (WAI) were less likely than other families to agree to an observation session in their homes and to a series of telephone interviews about daily events in the boys' lives. Across the 3 phases of the research, the cumulative attrition rate of these at-risk boys was approximately 80%, compared to only 50% for those low in distress and/or high in self-restraint. These results suggest that the children of greatest interest in studies of social competence and family interaction may often be among those least adequately represented.  相似文献   
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This is a study of the costs of instruction in a large public research university. It departs from other work on instructional costs in its attempt to draw inferences about the economic costs of incremental or marginal enrollments. Focusing on graduate education, we examine how the costs directly facing faculty differ from those incurred by the institution's administration and legislature as reflected in the budgetary rewards for instruction. These cost differences provide the wherewithal for a university to carry out basic research and other important functions that lack a paying clientele. The study also explores the roles of economic costs in the institution's pricing of graduate education.  相似文献   
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