Glossary
Survey vs. Questionnaire: What's the Difference?
A survey is the whole project, the questionnaire is the instrument inside it. We show you the difference, where forms and studies end, and what standardisation means.
Glossary
Glossary
Absolute Scale: Definition, Examples and Calculations
With an absolute scale the unit is fixed, so a headcount stays a headcount and nothing converts. Find out how to recognise it and which calculations its values will support.
Glossary
Ratio Scale: Definition, Examples and What You Can Calculate
One salary is twice another, but 20°C is never twice as warm as 10°C. The difference is the zero point, and that is what a ratio scale brings to your data.
Glossary
Interval Scale: Definition, Examples and Calculations
With an interval scale the distances are equal and the starting point is arbitrary. Find out what that lets you calculate and how it really differs from a ratio scale.
Glossary
What is a Cardinal Scale? Definition and Example
“Cardinal scale” is the German name for the interval and ratio scales. Here is what that means, the three types and which calculations you are allowed to run.
Glossary
What is an Ordinal Scale? Definition and Example
How to spot an ordinal scale in your questionnaire: the two conditions behind a rank order, the figures that hold up and the tests that go with them.
Glossary
What is a Nominal Scale? Definition and Example
A nominal scale sorts answers into categories without ranking them. We show you UK examples, the calculations you are allowed to run and how it differs from an ordinal scale.
Glossary
What is a Rating Scale? Definition and Example
How many points, which words on them and which figure you may report: we go through every decision behind a rating scale, with British wording you can lift.
Glossary
What does Objectivity Mean? Definition and Example
What objectivity as a quality criterion actually requires: the three parts, practical measures for your own survey and why no single figure can express it.
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