Normative Data

Normative data is typically obtained from a large, randomly selected representative sample from the wider population. It is data from a reference population that establishes a baseline distribution for a score or measurement, and against which the score or measurement can be compared. For example, the "ideal" range of motion for a goniometric assessment of a joint is established using normative data collected from various research studies. This data can be used to compare an individual's score or measurement to the average performance of others in the same group.