Complicated lives of college students the educational culture of under-achievers

Titre de l'écran-titre (visionné le 4 oct. 2013)Bibliogr

Complicated lives

"This document is a brief summary of the report entitled Complicated lives"Titre de l'écran-titre (visionné le 4 août 2008).Également disponible en format papier.Bibliogr

Complicated lives

"This document is a brief summary of the report entitled Complicated lives"Titre de l'écran-titre (visionné le 4 août 2008).Également disponible en format papier.Bibliogr

Assessing a Binary Measurement System.”

Assessing measurement systems is a necessary task in all industrial contexts. While a great deal has been written about assessing measurement systems that yield continuous outputs, little work addresses binary measurement systems despite their widespread use. This article proposes two new plans for assessing a binary measurement system that are applicable when we can assume the pass rate of the system is known. This assumption is often reasonable when we need to assess a system used for 100% inspection in a production process. The plans provide estimates of the misclassification rates as well as the proportion of conforming items produced. The two methods are compared to existing plans

Enseigner au collégial, une profession à partager

Titre de l'écran-titre (visionné le 22 nov. 2007)Également disponible en format papie

Des vies complexes

"Ce document présente un résumé du rapport tiré de la recherche sur: Des vies complexes"Titre de l'écran-titre (visionné le 4 août 2008).Également disponible en format papier.Bibliogr

Using Available Information in the Assessment of Diagnostic Protocols

A new binary screening or diagnostic test may be combined sequentially with an existing test using either a believe the positive or believe the negative protocol. Interest then lies in estimating the properties of the new combined protocol and in comparing the new protocol with the existing test via sensitivity, specificity, or likelihood ratios that capture the trade-o between sensitivity and specificity. We consider a paired assessment study with complete verification via a gold standard. Our goal is to quantify the gain in precision for the estimators of the sensitivity, specificity and the ratio of likelihood ratios in protocols when baseline information on the performance of the existing test is available. We find maximum likelihood estimators of the quantities of interest and derive their asymptotic standard deviations. The methods are illustrated using previously published mammography and ultrasound test results from a cohort of symptomatic women. We find that incorporating baseline information has a large impact on the precision of the estimator for the specificity of the believe the positive protocol and of the sensitivity of the believe the negative protocol. Including available baseline information can improve the precision of estimators of the sensitivity, specificity, and the ratio of likelihood ratios and/or reduce the number of subjects needed in an assessment study to evaluate the protocol.This research was supported by grants from the Natural Sciences and Engineering Research Council of Canada