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Joseph R. Jenkins Rebecca Zumeta Opio Dupree 《Learning disabilities research & practice》2005,20(4):245-253
This study examined several aspects of Passage Reading Fluency (PRF) including performance variability across passages alternative designs for measuring PRF gain, and effects on PRF level from retesting with the same passages. Participants were 33 students from grades 2 to 10 attending a school for students with learning disabilities. PRF was measured at three test points. Time‐2 tests occurred 10 weeks after time‐1 tests, and time‐3 tests occurred 5 weeks after the time‐2 tests. At Test points 2 and 3, students read old passages (same‐passage design) and new passages (different‐passage design). Results showed substantial individual variation on concurrent PRF measures, smaller variation in gains measured with the same‐passage design, and no passage memory effects (i.e., from retested passages). Results are discussed in relation to measuring reading gains in Response to Intervention models. 相似文献
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Joseph Nussbaum 《International Journal of Science Education》2013,35(5):530-540
Researchers of students’ concepts and conceptual change frequently draw analogies to the history of science. The analogy is generally presented when comparing students’ scientific concepts to similar ones in the history of science. We have tried to show the importance of this analogy on a higher level ‐‐ that of understanding the process of conceptual change in general among students. This article outlines a number of lines in the philosophy of science and analyses differences between the perspectives of a number of broadly constructivist positions which have developed during this century. The analysis is used to clarify the theoretical basis on which research into student conceptual change is conducted and interpreted. 相似文献
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The paper presents some findings of a study which surveyed the political attitudes and involvement of American scientists.We found an unambiguous rank ordering based on political orientation among the various subgroups of scientists. The greater the scientists' identification with basic science and the university, the greater the liberalism. However, the claim that scientific elites are more liberal than the rank-and-file and that physicists are the most liberal among natural scientists was not substantiated.The fear that a scientific-technological elite might become a dominant political elite was not reflected in the thinking of a large majority of our 1205 respondents. A majority expressed reservations about the skill and knowledge of the citizenry to understand and resolve the increasingly complex problems of our society, recognize that a separation of science and politics is not attainable or even desireable, but remain somewhat uneasy with the new situation in which their work has become so enmeshed with policy concerns.The traditional norm system of science continues to receive substantial support and takes precedence over either the concern about the social consequences of certain types of “dangerous” knowledge, or the costs that heavy investments in basic science involve. We find that scientists are largely prepared to sacrifice the norm of communality at the altar of nationalism. The clash between an internal ideology of science that values disinterested search for knowledge and an external ideology of society which focuses on utility presents a continuing dilemma. 相似文献
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Joseph G. Eisenhauer 《Teaching Statistics》2001,23(2):45-48
This paper describes and illustrates several models of randomized response sampling, a survey technique for eliciting truthful answers to sensitive questions. 相似文献