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How does a statistical test work? - Part 2
In Part 1 of the series "How does a statistical test work?" we explained the basic principles of statistical testing (please have a look at this video first). The present video gives some additional details: Understand how a p-value is calclated and what "degrees of freedom" means.<br /> <br /> GSS - Guided Statistics for Scientists<br /> <br /> Easy to use statistical software and blog: https://gss-statistical-software.com -
How does a statistical test work? - Part 1
In this video we explain the principles of statistical testing. It's not magic, but a relatively simple aproach with two steps: Calculation of a so called "test statistic" and then comparison of this test statistic with a threshold. We illustrate this with simple examples.<br /> <br /> GSS - Guided Statistics for Scientists<br /> <br /> Easy to use statistical software and blog: https://gss-statistical-software.com -
Statistical tests: Original vs. derived data
What are derived data and shall they be used for statstical testing? In this video we explain the key differences between derived and original data and when and how to use them appropriately.<br /> GSS - Guided Statistics for Scientists -
Statistical tests: Understanding data type
One of the criteria to select a statistical method is the data type. In this video we explain how to easily determine to which data type your data belong. The key question is "What did I measure in each individual?"<br /> GSS - Guided Statistics for Scientists -
Statistical test selection made easy
This video gives a brief introduction on how to choose an appropriate statistical test. Test selection is much easier than one may think. You just have to ask yourself a couple of questions regarding what you want to test, what data you have, etc.<br /> - Guided Statistics for Scientists -
