Pyrotannic acid method for determination of carbon monoxide     

R.R. Sayers  W.P. Yant 《Journal of The Franklin Institute》1925,200(3):398-399

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Differing Roles,Differing Concerns: Using Network Analysis as a Tool to Highlight Diverging Concerns and Priorities Surrounding Teacher Education at Minority-Serving Institutions     

Dorothy Villarreal  Manuel González Canché  Andrés Castro Samayoa  Alice Ginsberg 《The Teacher Educator》2013,48(4):446-459

Abstract

Minority-serving institutions are important in the production of teachers of color. However, this formative process is not without limitations. This multisite, multistate study relied on network analysis techniques to unveil timely and relevant concerns that students, faculty, and administrators identified as critical toward the strengthening of teacher production.  相似文献   

Contemporary Scientists and their Interactions with Non-Scientists: Alternative Companion Stories for School Curricula     

Smith  Dorothy V.  Mulhall  Pamela J.  Hart  Christina E.  Gunstone  Richard F. 《Research in Science Education》2020,50(5):2111-2130

Research in Science Education - Students learn more than science knowledge in a science classroom; they also acquire important messages about the purposes and contexts of science. Roberts (2011)...  相似文献   

The Bicycle Assembly Line Game     

Dorothy Klotz 《Decision Sciences Journal of Innovative Education》2011,9(3):371-377

“The Bicycle Assembly Line Game” is a team‐based, in‐class activity that helps students develop a basic understanding of continuously operating processes. Each team of 7–10 students selects one of seven prefigured bicycle assembly lines to operate. The lines are run in real‐time, and the team that operates the line that yields the highest revenue wins. Students learn through discovery “What drives output rate?”; “How is capacity managed relative to market demand?”; and “Why does inventory accumulate?” Because task times are constant, the game provides a nice lead‐in to the topic of line balancing. This game has been successfully used in both undergraduate‐ and MBA‐level operations management courses.  相似文献   

How to doctor the media     

Nelkin D 《New scientist (1971)》1986,112(1535):51-56

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Genetic influences in different aspects of language development: the etiology of language skills in 4.5-year-old twins     

Kovas Y  Hayiou-Thomas ME  Oliver B  Dale PS  Bishop DV  Plomin R 《Child development》2005,76(3):632-651

The genetic and environmental etiologies of diverse aspects of language ability and disability, including articulation, phonology, grammar, vocabulary, and verbal memory, were investigated in a U.K. sample of 787 pairs of 4.5-year-old same-sex and opposite-sex twins. Moderate genetic influence was found for all aspects of language in the normal range. A similar pattern was found at the low end of the distribution with the exception of two receptive measures. Environmental influence was mainly due to nonshared factors, unique to the individual, with little influence from shared environment for most measures. Genetic and environmental influences on language ability and disability are quantitatively and qualitatively similar for males and females.  相似文献   

Effect of Rasch Calibration on Ability and DIF Estimation in Computer-Adaptive Tests     

Rebecca Zwick  Dorothy T. Thayer  Marilyn Wingersky 《Journal of Educational Measurement》1995,32(4):341-363

In a previous simulation study of methods for assessing differential item functioning (DIF) in computer-adaptive tests (Zwick, Thayer, & Wingersky, 1993, 1994), modified versions of the Mantel-Haenszel and standardization methods were found to perform well. In that study, data were generated using the 3-parameter logistic (3PL) model and this same model was assumed in obtaining item parameter estimates. In the current study, the 3PL data were used but the Rasch model was assumed in obtaining the item parameter estimates, which determined the information table used for item selection. Although the obtained DIF statistics were highly correlated with the generating DIF values, they tended to be smaller in magnitude than in the 3PL analysis, resulting in a lower probability of DIF detection. This reduced sensitivity appeared to be related to a degradation in the accuracy of matching. Expected true scores from the Rasch-based computer-adaptive test tended to be biased downward, particularly for lower-ability examinees  相似文献   

Toward a description of deaf college students' written English: overuse, avoidance, and mastery of function words     

Channon R  Sayers EE 《American annals of the deaf》2007,152(2):91-103

The use of function words in 135 essays written by deaf college underclassmen in developmental and credit-bearing English composition classes is described and compared with Standard English (SE) versions of teh same essay. If student and SE version were the same, this was considered mastery; if the student omitted a word, this was considered avoidance; and if the student added a word, this was considered overuse. The deaf students varied from SE more for function than for content words. They demonstrated low mastery of independent clause markers, demonstratives, third-person singular neuter pronouns, and modals related to possibility, but had relatively high mastery of the first-person singular; and some punctuation. These students strongly avoided some dependent clause markers, some demonstratives, the indefinite article, punctuation except for periods and commas, and the modal verbs may, might and should , but greatly overused other dependent clause markers, the second person and third-person pronouns, quantifiers, the verb do, and the modals could and will. They were also more likely to produce run-ons than fragments.  相似文献   

Changing the conception of mathematical knowledge in intellectually able,math avoidant women     

Dorothy D. Buerk Ed.D. 《Roeper Review》2013,35(4)

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Letters to the editor     

Alex L. Savitz  Kyle R. Carter Ph.D.  Susan Kontos Ph.D.  Dorothy Dodd Ed.D. 《Roeper Review》2013,35(3)

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