1,830 research outputs found
Clinical audit project in undergraduate medical education curriculum: An assessment validation study
Objectives: To evaluate the merit of the Clinical Audit Project (CAP) in an assessment program for undergraduate medical education using a systematic assessment validation framework.
Methods: A cross-sectional assessment validation study at one medical school in Western Australia, with retrospective qualitative analysis of the design, development, implementation and outcomes of the CAP, and quantitative analysis of assessment data from four cohorts of medical students (2011-2014).
Results: The CAP is fit for purpose with clear external and internal alignment to expected medical graduate outcomes. Substantive validity in studentsâ and examinersâ response processes is ensured through relevant methodological and cognitive processes. Multiple validity features are built-in to the design, planning and implementation process of the CAP. There is evidence of high internal consistency reliability of CAP scores (Cronbachâs alpha \u3e 0.8) and inter-examiner consistency reliability (intra-class correlation\u3e0.7). Aggregation of CAP scores is psychometrically sound, with high internal consistency indicating one common underlying construct. Significant but moderate correlations between CAP scores and scores from other assessment modalities indicate validity of extrapolation and alignment between the CAP and the overall target outcomes of medical graduates. Standard setting, score equating and fair decision rules justify consequential validity of CAP scores interpretation and use.
Conclusions: This study provides evidence demonstrating that the CAP is a meaningful and valid component in the assessment program. This systematic framework of validation can be adopted for all levels of assessment in medical education, from individual assessment modality, to the validation of an assessment program as a whole
Proofs of two conjectures on ternary weakly regular bent functions
We study ternary monomial functions of the form f(x)=\Tr_n(ax^d), where
x\in \Ff_{3^n} and \Tr_n: \Ff_{3^n}\to \Ff_3 is the absolute trace
function. Using a lemma of Hou \cite{hou}, Stickelberger's theorem on Gauss
sums, and certain ternary weight inequalities, we show that certain ternary
monomial functions arising from \cite{hk1} are weakly regular bent, settling a
conjecture of Helleseth and Kholosha \cite{hk1}. We also prove that the
Coulter-Matthews bent functions are weakly regular.Comment: 20 page
335 Placebo Effects In LaserâEvoked Pain Potentials
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/90215/1/S1090-3801_06_60338-8.pd
Technical Note: Effect of Soil on the pH of Treated Wood in Ground Contact
The pH of treated wood in ground contact will influence the type and activity of decay and nondecay microorganisms present as well as the solubility and leaching of metallic biocides. To determine the soil effect on the pH of treated wood in ground contact, southern pine sapwood samples commercially treated with five copper-based preservatives along with untreated pine were placed in pots filled with five different soils. The pH of the wood samples after a 12-wk exposure to basic soils increased, as anticipated. However, the pH of wood in acidic soils was more complex than expected with the treated wood pH always greater than soil pH. Two possible chemical mechanisms to explain the nonintuitive results for treated wood in acidic soils are given
Bayesian log-Gaussian Cox process regression: applications to meta-analysis of neuroimaging working memory studies
Working memory (WM) was one of the first cognitive processes studied with
functional magnetic resonance imaging. With now over 20 years of studies on WM,
each study with tiny sample sizes, there is a need for meta-analysis to
identify the brain regions that are consistently activated by WM tasks, and to
understand the interstudy variation in those activations. However, current
methods in the field cannot fully account for the spatial nature of
neuroimaging meta-analysis data or the heterogeneity observed among WM studies.
In this work, we propose a fully Bayesian random-effects metaregression model
based on log-Gaussian Cox processes, which can be used for meta-analysis of
neuroimaging studies. An efficient Markov chain Monte Carlo scheme for
posterior simulations is presented which makes use of some recent advances in
parallel computing using graphics processing units. Application of the proposed
model to a real data set provides valuable insights regarding the function of
the WM
Computational Essays: An Avenue for Scientific Creativity in Physics
Computation holds great potential for introducing new opportunities for
creativity and exploration into the physics curriculum. At the University of
Oslo we have begun development of a new class of assignment called
computational essays to help facilitate creative, open-ended computational
physics projects. Computational essays are a type of essay or narrative that
combine text and code to express an idea or make an argument, usually written
in computational notebooks. During a pilot implementation of computational
essays in an introductory electricity and magnetism course, students reported
that computational essays facilitated creative investigation at a variety of
levels within their physics course. They also reported finding this creativity
as being both challenging and motivating. Based on these reflections, we argue
that computational essays are a useful tool for leveraging the creative
affordances of programming in physics education.Comment: Accepted to the 2019 Physics Education Research Conference
Proceeding
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