Showing posts with label National Academies. Show all posts
Showing posts with label National Academies. Show all posts

Tuesday, May 29, 2012

Nat'l Academies Pre-print Report on Discipline-Based Education Research

This 270 page "synthesis study" collects the literature and assesses research on approaches to undergraduate science education.  I haven't read the report, just skimmed the 19-page Executive Summary. 

Most reports by the National Academies can be read online for free, including this one.  From the Exec. Summ.:
DBER scholars have devoted considerable attention to effective instructional strategies and to students’ conceptual understanding, problem solving, and use of representations. Key findings from DBER are consistent with cognitive science research and studies in K-12 education.

To gain expertise in science and engineering, students must learn the knowledge, techniques, and standards of each field. However, across the disciplines, the committee found that students have incorrect understandings about fundamental concepts, particularly those that involve very large or very small temporal and spatial scales. Moreover, as novices in a domain, students are challenged by important aspects of the domain that can seem easy or obvious to experts, such as problem solving and understanding domain-specific representations like graphs,
models, and simulations. These challenges pose serious impediments to learning.

DBER clearly shows that research-based instructional strategies are more effective than traditional lecture in improving conceptual knowledge and attitudes about learning. Effective instruction involves a range of approaches, including making lectures more interactive, having students work in groups, and incorporating authentic problems and activities.

To enhance DBER’s contributions to the understanding of undergraduate science and engineering education, the committee recommended:
  • Research that explores similarities and differences among different student
    populations.
  • Longitudinal studies—including studies of the K-12/undergraduate transition— to better understand the acquisition of important concepts and factors influencing retention.
  • More studies that measure outcomes other than test scores and course performance, and better instruments to measure these outcomes.
  •  Interdisciplinary studies of cross-cutting concepts and cognitive processes.

Friday, October 01, 2010

Academy Rankings Tell You a Lot, But Not Who's No. 1 in Any Field

Jeffrey Mervis
Science 1 October 2010: 18-19. 

This week's release of the long-awaited assessment of the quality of U.S. research doctoral programs by the National Academies' National Research Council will disappoint those who simply want to know who's No. 1 in any particular field, because the NRC assessment can look quite different depending on your definition of "best." 
 This National Academies' NRC study was discussed in a recent meeting I attended of the UMass Amherst Faculty Senate's council which is the liaison to the University's Development Office.  Rankings of this kind are always of interest to University administrations, naturally. Everyone speaking about it acknowledged that the 'rankings' are problematic in a number of ways.  One member commented that the people doing the ranking wouldn't have first-hand knowledge of the  departments they were judging among - it's a matter of reputation, apparently, rather than anything based on real data. That said, people will make use of the numbers in whatever way will benefit their agenda.  From the article in Science:
To be sure, NRC does rank programs—but oh so carefully. Instead of assigning a single score to each program in a particular field, the assessment ranks the program on five different scales. Each score is also presented as a range of rankings reflecting the 5th and 95th percentiles of the scores it received. The scales themselves are based on 20 characteristics (see table, p. 19) that the NRC panel deemed appropriate for a quantitative assessment. Two are supposed to portray the overall quality of the program—one derived from a reputational survey (the R scale), the other from a quantitative analysis (the S scale). Three others rely on subsets that address important dimensions of quality: research activity, student support and outcomes, and diversity. The report itself highlights the uncertainties generated by such an exercise by calling the results "illustrative rankings [that] are neither endorsed nor recommended by the NRC as an authoritative conclusion about the relative quality of doctoral programs."
 The report's Excel spreadsheets are available at www.PhDs.org or www.nap.edu/rdp.