# Quantitative

As the name suggests, quantitative refers to a group of methods whose main focus is on quantities, that is, numbers. Numbers will usually be the main type of **data** that these methods collect, and those numbers will be analysed using mathematical or statistical techniques. Researchers using quantitative techniques usually see themselves as doing science.

Experiments done in a laboratory will almost certainly be quantitative. In a health care context, **randomised controlled trials** are quantitative in nature, as are **case-control** and **cohort studies**. Surveys (questionnaires) are usually quantitative
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