# Tagged: Statistics

## How to compare two groups?

Probably one of the most frequently asked questions in statistics is how to compare two groups. We created a video showing a simple example of how to apply Students t-test for this purpose. We compare body height of two groups, women and men. We explain why a t-test is appropriate...

## Statistical Guide for iOS

GSS is a statistical software, which includes not only powerful modules for statistical analyses, but also an intuitive guide, which helps to identify the correct statistical test for your type data and research question. This guide has now been adapted to iOS and is available in the AppStore: GSS for iOS. In the following video we explain, why the statistical guide included in GSS is really an important feature and how the iOS App looks like.

## How does a statistical test work? – Part 2

In the last article, we have illustrated the concept of statistical tests. If you only want to obtain a rough understanding of the concept behind statistical tests then reading our last article is absolutely sufficient. However, if you are interested in more detail, then the following will help you to understand how a p-value is calculated and what “degrees of freedom” means.

## How does a statistical test work? – Part 1

When you do your first statistical tests you may get the impression that doing statistics is complicated. In this article we want to show that the principle of statistical testing is actually relatively simple.

## 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…

## New GSS version 1.2 released

The new version of GGS includes a number of new, exciting features that make analyses easier and efficient. Here is a summary of the main new features. New statistical guide The statistical guide, featuring a new flowchart to guide you through the test selection. If at any step you feel...