When you have more than two means to compare, an F test in PROC ANOVA or PROC GLM tells you whether the means are significantly different from each other, but it does not tell you which means differ ...

PROC SURVEYREG produces tests for the significance of model effects, regression parameters, estimable functions specified in the ESTIMATE statement, and contrasts specified in the CONTRAST statement.

All patients had been previously diagnosed with keratoconus, presenting grade II to grade III keratoconus according to the keratoconus severity score grading scale. [28] Habitual correction for 3 ...

In order to establish bioequivalence between two formulations in a crossover trial, it is common to assume a mixed-effect analysis of variance (ANOVA) model and perform two one-sided tests. When the ...