# Fundamentals

## Introduction

Before we perform any analyses we first need to get some terms sorted out and be understood. These are:

Statistics in generalWhat is statistics and what is the difference between a sample and population?

Terms connected to data

Statistics is all about data, so we need to get some terminology sorted

Measurement level

Depending on the measurement level, various statistical tools can be used.

Significance

The key term in so-called inferential statistics

If you are already familiar with the measurment levels, and know what a statistical significance is, you can skip this part, otherwise I highly recommend to go over these first.

Let's begin with some general terms about statistics on the next page.

**Fundamentals**

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