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91.
92.
Testing programs are often interested in using a student growth measure. This article presents analytic derivations of the accuracy of common student growth measures on both the raw scale of the test and the percentile rank scale in terms of the proportional reduction in mean squared error and the squared correlation between the estimator and target. The study contrasts the accuracy of the growth measures against that of current status measures—current test scores and their percentile ranks. Key findings include the extent that status measures are more accurate than any of the growth measures and that alternative methods to estimate growth could be more accurate than the currently used methods. Our findings highlight the importance for evaluating the statistical properties of growth measures along with other concerns for states that are debating the reporting of growth. Our results also point out that assessing the accuracy of growth measures requires the specification of quantities of interest in terms of latent achievement rather than observed test scores, which is common practice for developing status measures but essentially never done by testing programs for growth measures. 相似文献
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94.
A view of science as a culturally‐mediated way of thinking and knowing suggests that learning can be defined as engagement with scientific practices. How students engage in school science is influenced by whether and how students view themselves and whether or not they are the kind of person who engages in science. It is therefore crucial to understand students' identities and how they do or do not overlap with school science identities. In this paper, we describe four middle school African American girls' engagement with science. They were selected in the 7th grade because they expressed a fondness for science in school or because they had science‐related hobbies outside of school. The data were collected from the following sources: interviews of students, their parents and their teachers; observations in science classes; journal writing; and focus groups. These girls' stories provide us with a better understanding of the variety of ways girls choose to engage in science and how this engagement is shaped by their views of what kind of girl they are. © 2000 John Wiley & Sons, Inc. J Res Sci Teach 37: 441–458, 2000. 相似文献
95.
This study investigated whether competitive and noncompetitive educational mathematics computer games influence four‐ to seven‐year‐old boys’ and girls’ recall of game‐playing experience. A qualitative analysis was performed to investigate what preschool children may have learned through their selective recall of game‐playing experience. A difference emerged in six‐ to seven‐year‐old boys’ and girls’ recall after playing a competitive computer mathematics game, such that boys tended to first recall the consequence of ‘winning and losing’ whereas girls of the same age focused on ‘friendship among animated characters’ in the game. Thus, the qualitative results suggest the possibility that selective attention or selective recall might be partially influenced by gender schemas. Based on the recall sequences, educational noncompetitive computer mathematics games may lead to a better learning outcome for older boys. 相似文献
96.
Eric FuLong Wu Katherine M. Shelfer 《Library Collections, Acquisitions, and Technical Services》2009,33(4):97-104
This paper employs the solver function in Microsoft Excel? to make a ‘what-if' analysis of library materials budgetary allocation decisions. Two sets of allocation constraints are presented and used to describe two different theoretical scenarios: (1) a slight materials budget increase and (2) a significant materials budget decrease. In each scenario, the associated allocation ‘parity' risks are identified using solver and the outcomes of different risk management strategies are considered. Sensitivity to context requires different risk management solutions to minimize conflicts between stakeholders with competing interests. By pre-managing allocation risks, the decisions allow library materials budgets to be optimized. 相似文献
97.
Katherine Bell Steven William Glover Colin Brodie Anne Roberts Colette Gleghorn 《Health information and libraries journal》2009,26(2):136-142
Background: Within NHS North West England there are 24 primary care trusts (PCTs), all with access to different types of library services. This study aims to evaluate the impact the type of library service has on online resource usage. Methodology: We conducted a large‐scale retrospective quantitative study across all PCT staff in NHS NW England using Athens sessions log data. We studied the Athens log usage of 30 381 staff, with 8273 active Athens accounts and 100 599 sessions from 1 January 2007 to 31 December 2007. Results: In 2007, PCTs with outreach librarians achieved 43% penetration of staff with active Athens accounts compared with PCTs with their own library service (28.23%); PCTs with service level agreements (SLAs) with acute hospital library services (22.5%) and with no library service (19.68%). This pattern was also observed when we looked at the average number of Athens user sessions per person, and usage of Dialog Datastar databases and Proquest full text journal collections. Discussion: Our findings have shown a correlation of e‐resource usage and type of library service. Outreach librarians have proved to be an efficient model for promoting and driving up resources usage. PCTs with no library service have shown the lowest level of resource usage. 相似文献
98.
Taylor K 《The Journal of perinatal education》2010,19(2):4-6
Katherine and Andrew Taylor chose to have a planned home birth. With the support of her husband, Andrew, and her midwife and doula, Katherine labored at home for 48 hours before transferring to the hospital. Baby Luke was born by cesarean about 20 hours later. Confident and supported, the Taylors were able to make informed decisions and have a positive birth experience, although it was not what they had planned. 相似文献
99.
This paper investigates the ways in which discourses of teacher accountability were negotiated by teachers within hearings held for the Australian Inquiry into Boys' Education. In the Inquiry context, dominant interpretative repertoires positioned teachers as obliged to ‘acknowledge’, ‘address’ and ‘actively respond’ to an essentialised version of male students' ‘learning needs’. These repertoires functioned to equate the provision of ‘boy-friendly’ interventions with ‘professional’ classroom practice – suggesting significant discursive constraints on teachers' capacity to make sense of boys' underperformance outside of this dominant framework. Attention is paid to the ways in which these repertoires supported teachers to manage a positive identity in a context where they were positioned as largely responsible for male students' underperformance. At the same time, such constructions are interrogated with regard to their broader function in naturalising the surveillance of teachers, and reproducing boys' underachievement as something for which (particularly female) teachers have to account. 相似文献
100.
“American = English Speaker” Before “American = White”: The Development of Children's Reasoning About Nationality 下载免费PDF全文
Jasmine M. DeJesus Hyesung G. Hwang Jocelyn B. Dautel Katherine D. Kinzler 《Child development》2018,89(5):1752-1767
Adults implicitly judge people from certain social backgrounds as more “American” than others. This study tests the development of children's reasoning about nationality and social categories. Children across cultures (White and Korean American children in the United States, Korean children in South Korea) judged the nationality of individuals varying in race and language. Across cultures, 5‐ to 6‐year‐old children (N = 100) categorized English speakers as “American” and Korean speakers as “Korean” regardless of race, suggesting that young children prioritize language over race when thinking about nationality. Nine‐ and 10‐year‐olds (N = 181) attended to language and race and their nationality judgments varied across cultures. These results suggest that associations between nationality and social category membership emerge early in life and are shaped by cultural context. 相似文献