In this short tutorial, I first summarize the concepts behind the method, distinguishing test of significance (Fisher) and test of acceptance (Newman-Pearson) and point to common interpretation errors regarding the p-value. I then present the related concepts of confidence intervals and again point to common […]
Null hypothesis significance testing: a short tutorial CONTINUE READING »
Six essential considerations in the planning andevaluation of medical research studies are presented anddiscussed in the light of selected scientific articles fromthe international literature as well as the authors’ ownscientific expertise with regard to study design. Click here to consult the resource Resource quality according
Study Design in Medical Research CONTINUE READING »
The aim of this paper is to present anaccessible introduction into critical appraisal of scientificarticles. Click here to consult the resource Resource quality according to evaluation criteria, range 0-32: 23
Critical Appraisal of Scientific Articles CONTINUE READING »
A series of 10 papers published by the prestigious BMJ regarding critical evaluation of research results published in medical journals. Click here to consult the resource Resource quality according to evaluation criteria, range 0-32: 25
How to read a paper CONTINUE READING »
This paper reports the development of a hierarchy for ranking of evidenceevaluating healthcare interventions. Click here to consult the resource Resource quality according to evaluation criteria, range 0-32: 25
The current approach to assessing the quality of evidenceobtained from clinical trials focuses on three dimensions: thequality of the design (with double-blinded randomised controlledtrials representing the highest level of such design); the statisticalpower (beta) and the level of significance (alpha). While theseaspects are important, we
Third step of evidence based medicine (EBM) to determine the clinical value of a study. Click here to consult the resource Resource quality according to evaluation criteria, range 0-32: 29
Level of Evidence CONTINUE READING »
This article describes the structured classificationof studies into two types, primary and secondary, as wellas a further subclassification of studies of primary type.This is done on the basis of a selective literature searchconcerning study types in medical research, in addition tothe authors’ own experience. Click
Types of Study in Medical Research CONTINUE READING »
