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In all empirical studies (where conclusions are drawn by studying reality), some form of data collection is conducted. The collected data is analyzed, and conclusions are then drawn. When collecting…

This web-page provides an introduction to the concepts sensitivity, specificity and ROC-analysis. Reading this will give you an understanding of these concepts and how to use them. You will understand…

Suggested pre-reading What this web page adds Introduction to statistics Observations and variables Inferential statistics Choosing statistical analysis Associations and predictions Regression and correlation This web-page provides an introduction to…

This webpage provides an introduction to computer programs that can manage references. Reading this webpage will give you an understanding of what reference management software can do. Key features Once…

This web page provides a brief overview over different ways of randomly allocate subjects to different groups. It also discusses the purpose of including confounding variables as well as the…

Suggested pre-reading What this web page adds Introduction to statistics Observations and variables This web-page describes what a confidence interval is and how it can be used. Reading this will…

Suggested pre-reading What this web page adds Introduction to statistics Observations and variables Inferential statistics Choosing statistical analysis Associations and predictions This web-page provides an introduction to Relative risk /…