Category: Statistics

Understanding data type

When you do statistical analyses, the knowledge about data type is very important, because many statistical methods and tests were specifically designed for a specific data type. However, there is a lot of confusion regarding data type, because many different terms are used and when you look into statistical textbooks,...

Selecting statistical tests made easy

Why are there so many tests? If you need to conduct statistical testing for your thesis or your first paper you might be overwhelmed by the large quantity of statistical tests. Why are so many available? How do I choose and how can I be sure to have selected the...

GSS dose response analysis

Dose-response analyses

Overview Dose-response curves are use used to describe the relation of dose (e.g. of a pharmaceutical) and the resulting effect. To do this, dose response functions are fitted to measured data. These functions can then be used to calculate of important benchmarks such as the EC50 (dose leading to 50...