Categories: Site glossary
A covariate is a factor that may vary and influence the outcome of an experimental study, but is not being deliberately modified or controlled. For example, if the effectiveness of different teaching approaches are being evaluated by student scores on a post test, then student prior attainment (as measured by scores on a pre-test) can be considered a covariate.
[Please be aware that a word may have different nuances, or even a different meaning, according to context.]« Back to Index
