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Parametric Tests
These are statistical tests which assume that the Data are of a particular type. The assumptions are that the Data are at least at the interval level of measurement, that the scores should be drawn from a normal distribution, and that the samples must have equal or known variances.Examples of parametric inferential statistical tests include the T-test and Pearson’s product-moment test.
Parametric test are often preferred because they use more of the information available in the Data and are therefore more powerful in detecting significant effects or relationships.
