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321.
Todd E. Bodner 《Structural equation modeling》2013,20(4):651-675
When using multiple imputation in the analysis of incomplete data, a prominent guideline suggests that more than 10 imputed data values are seldom needed. This article calls into question the optimism of this guideline and illustrates that important quantities (e.g., p values, confidence interval half-widths, and estimated fractions of missing information) suffer from substantial imprecision with a small number of imputations. Substantively, a researcher can draw categorically different conclusions about null hypothesis rejection, estimation precision, and missing information in distinct multiple imputation runs for the same data and analysis with few imputations. This article explores the factors associated with this imprecision, demonstrates that precision improves by increasing the number of imputations, and provides practical guidelines for choosing a reasonable number of imputations to reduce imprecision for each of these quantities. 相似文献
322.
Phyl Renninger Anne Meilof Todd Pitts Janie K. Smalley 《Community College Journal of Research & Practice》2013,37(9):725-729
Community colleges have seen dramatic enrollment increases (Kasper, 2002), and some are now offering 4-year degrees (Evelyn, 2003). They are eligible for more grants than in the past, and community college funding from state and federal appropriations is shrinking (Lawrence & Marino, 2003). For these reasons, it is imperative that community college faculty become involved in grant proposal preparation and submission. They will also gain professionally from participating in grant development activities. 相似文献
323.
Robert O. Riggs Todd M. Davis Olivia H. Wilson 《Community College Journal of Research & Practice》2013,37(1):1-11
This paper examines the impact of a state‐wide mandatory testing and placement program operating in Tennessee's community college system as it relates to retention and academic progress of minority students. Utilizing the Board of Regents' data base, the records of 5,139 first‐time 1986 freshmen enrollees at Tennessee's ten public community colleges were examined and tracked through three successive academic quarters. Analysis suggests that of this group, only 22% were actually enrolled in college level programs, as the balance (78%) were in the developmental studies program. The constriction of college placement for minorities is especially severe, since developmental program requirements must be satisfied before they can proceed to earn college level credits. Of the 5,139 first time freshmen, only 56 black students were enrolled in college level courses, and of these, only 26 remained enrolled in Regents' institutions after three quarters. Analysis of attrition by ACT cohort suggests that attrition is higher for those enrolled in developmental studies programs, and 13% higher for minorities than for white students. These findings suggest that public officials may wish to assess if the testing and placement program as it is currently operating is achieving stated goals of improved retention and graduation of minority students 相似文献
324.
This article reports on a research project that investigated the experiences and perceptions of staff supervising final year social science undergraduates enrolled on a dissertation module in a post-1992 UK university. Using data from semi-structured interviews, the article explores staffs perspectives of the supervision process, the different approaches taken by staff to supervision and the challenges they face in supporting students through the dissertation journey. The paper offers a picture of the dissertation supervisors’ experiences and, it is hoped, will encourage other supervisors to interrogate their own supervision in light of the practice of colleagues. 相似文献
325.
326.
This paper explores a project to design and mount a unit on ‘managing diversity’. For its conceptual framework the unit draws on feminist theories of struggles for equity and social justice and the various policy approaches that workplace equality agents have correspondingly developed. Despite the emphasis on feminist theory, the paper makes no attempt to compare gender equity initiatives with strategies for managing diversity. Rather, some of the tensions are identified between the culturalist aims of the Managing Diversity movement and the redistributive goals that generated affirmative action and equal employment opportunities strategies; and it is suggested how an analysis of those tensions may promote increased student understanding of the topic. Secondly, it is assessed how a unit may juxtapose industrial relations and human resource management concepts to the benefit of curricula in both.In planning a new unit, moreover, it is not only the content which needs to be considered, but also the students' prior learning experience and the politics of persuading one's colleagues of the proposal's worth. Thus an account of these more pragmatic issues is integrated into the discussion. 相似文献
328.
Immediately following the attacks on the World Trade Center on September 11, 2001, family and friends of victims missing in the towers began placing “Missing Person Posters” of their loved ones around New York City. In this paper, we argue that the posters represent a powerful response to a traumatic and in some ways unprecedented situation, a response that transformed the death of loved ones from a reality or future certainty into a probability made possible by the searchers' desire, emotions, or imagination. We demonstrate how the posters, operating in the “subjunctive” voice, transformed the “liminal” space between life and death and “haunted” onlookers, so that survivors and spectators alike could ponder the possibilities of a world that would “hopefully” turn out for the best. We also consider the implications of the posters for those who were unable to acknowledge the loss of their loved ones. 相似文献
329.
Frank Tirro Leonard Feather Jim Haskins Jeff Todd Titon 《Communication Booknotes Quarterly》2013,44(5):76-77
Frank Tirro Jazz: A History (New York: Norton, 1977—$16.95 in trade edition; $12.95 in text edition, both hardback) Leonard Feather Inside Jazz (New York: Da Capo, 1977—$4.95, paper) Jim Haskins The Cotton Club (New York: Random House, 1977—$15.00, with paperback edition available) Jeff Todd Titon Early Downhome Blues: A Musical and Cultural Analysis (Urbana: University of Illinois Press, 1977—$16.50) 相似文献
330.
Todd A. Chavez Anna H. Perrault Pete Reehling Courtney Crummett 《Publishing Research Quarterly》2007,23(1):3-18
A survey of the global karst community was conducted in 2006. The survey was distributed via the World Wide Web to known karst
researchers. The instrument was designed to generate an initial inventory of core grey information types, to assess levels
of usage of grey information by the respondents, and to gauge the karst community’s willingness to participate in building
and expanding both this collection and the associated controlled vocabularies. 相似文献