Wednesday, September 28, 2011

YouTube lessons

You tube lessons useful for students of Community Medicine:

Salman Khan's lessons on statistics @ Khan's Academy are really useful for learning some of the foundations of biostatistics with understanding.



UC Berkeley channel has webcasts of Disaster management, Infectious disease epidemiology and Applied epidemiology using R (R is the latest up-to-date open source statistical package gaining popularity by the day)


IGNOU webcasts for PGDMCH course are also useful.



The Hindu : Life & Style / Youth : YouTube lessons:

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Monday, September 19, 2011

R: Sensitivity, specificity and predictive value of a diagnostic...

R: Sensitivity, specificity and predictive value of a diagnostic...: "Sensitivity, specificity and predictive value of a diagnostic test"
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Sometimes we need to evaluate the diagnostic accuracy of a new diagnostic test or score or index, in comparison to an existing gold standard. It is very simple to evaluate a diagnostic test in R (1).