Glossary
The NORAH glossary provides brief and clear explanations of technical terms and abbreviations. Can’t find the term you were looking for? Then simply get in touch with us via the contact form.
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Control persons
Every scientific study investigating how something affects people needs Control persons. These persons are not affected or affected only to a minor degree by this “something” – e.g. Noise or certain diseases. This allows scientists to compare differently affected groups and measure the effects of their investigation subject on people.