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1.
This article is a report of elementary school teachers' beliefs about and uses of text material in science. Survey results from 522 K-8 teachers from 299 schools in the United States, Puerto Rico and the Virgin Islands were analyzed along three dimensions: teacher attitudes toward teaching of reading in science; teacher beliefs and understanding about models of reading, factors influencing science reading and reading skills; and teacher use of various teaching strategies. Results suggest that teachers do not see reading science as different from any other narrative material. And though most agreed to the importance of having students do activities to support and enhance the use of text material, responses suggest that covering topics is still a concern for most elementary teachers. 相似文献
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The field of educational measurement has evolved considerably since the first doctoral programs were established. In response, programs have typically tacked on courses that address newly developed theories, methods, tools, and techniques. As our review of current programs evidences, this approach produces artificial distinctions among topics and techniques that are in fact a tightly coupled whole. This position paper advocates a redesign of the scope and sequence for doctoral programs focused on the preparation of the next generations of educational measurement specialists; a redesign that reflects the full life‐cycle of instrument development and use. 相似文献
4.
Larry A. Tucker 《Journal of sports sciences》2020,38(9):1026-1035
ABSTRACTThe length of telomeres is an objective measure of biologic ageing. This study evaluated the extent minutes of walking per week are associated with leukocyte telomere length (LTL) in a random sample of 5,823 U.S. adults. The investigation was cross-sectional and data were obtained from the National Health and Nutrition Examination Survey (NHANES). LTL was measured by the quantitative polymerase chain reaction method. Walking minutes was calculated from walking frequency and duration measures. Results showed that for each year of chronological age, telomeres were 15.6 base pairs shorter (P < 0.0001). With walking minutes and LTL treated as continuous variables, the relationship was quadratic, not linear (F = 11.2, P = 0.0023). With walking time divided into three categories, adults who performed ≥ 150 minutes of walking per week had longer telomeres than those who did no regular walking, and those who did some, but less than the recommendation (F = 5.0, P = 0.0137). Regular walkers were estimated to have a biologic ageing advantage associated with 6.5–7.6 years less biologic ageing compared to non-walkers, after adjusting for covariates. Additional investigations designed to study causality and the mechanisms associated with the walking and LTL relationship are needed. 相似文献
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Olivier Chapelle Shihao Ji Ciya Liao Emre Velipasaoglu Larry Lai Su-Lin Wu 《Information Retrieval》2011,14(6):572-592
We study the problem of web search result diversification in the case where intent based relevance scores are available. A
diversified search result will hopefully satisfy the information need of user-L.s who may have different intents. In this
context, we first analyze the properties of an intent-based metric, ERR-IA, to measure relevance and diversity altogether.
We argue that this is a better metric than some previously proposed intent aware metrics and show that it has a better correlation
with abandonment rate. We then propose an algorithm to rerank web search results based on optimizing an objective function
corresponding to this metric and evaluate it on shopping related queries. 相似文献
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Study One examined the influence of initial use of hesitations and hedges on evaluations of witnesses and their persuasiveness in a budget hearing context. Results indicate that the negative attributions generated by the use of powerless language cannot be overcome by subsequent use of powerful talk. Study Two examined the relationship between the frequency of powerless language use and impression formation. For award/character and dynamism a perceptual threshold appeared to operate. The results of both studies suggest that auditors are very sensitive to the influence of powerless talk in formal settings. 相似文献
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Donald F. Dansereau Larry W. Brooks Charles D. Holley Karen W. Collins 《Journal of Experimental Education》2013,81(3):102-108
A learning strategies program emphasizing primary (text-oriented), and support (affective) strategies was evaluated. Participants were given training in one of two sequences: primary-support or support-primary. A no-treatment group served as a control. In general, the results revealed that strategy training significantly improved performance on both text-processing and self-report measures. The primary-support group typically scored higher than the support-primary group on the text-processing measures. Conversely, the support-primary group reported more positive responses on the self-report measures. Long-term follow-up results are also presented. 相似文献
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Dr. Larry Eberlein 《Clearing house (Menasha, Wis.)》2013,86(6):287-291
In this article, the author reports the results of a national survey taken by state assessment directors on the impact of No Child Left Behind on nonassessed subjects between the years 2001-5. Results indicate that during this time, statewide assessment of science and writing increased whereas it decreased in the social studies, arts and humanities, listening, and technology and computers. Four themes emerged when survey takers queried participants about the impact of No Child Left Behind on nonassessed subject areas. First, reduction of resources and time for nontested subject areas was evident. Second, curriculum integration of nontested subject areas into the tested subjects increased. Third, alignment of curriculum and assessment with state standards increased. Fourth, several state assessment directors relayed they observed no impact. 相似文献