which of the following tests should i perform to evaluate the significance of the differences in means questionnaire in a patient? what test should you perform for a five point scale what test should i perform what test should i perform? what scale should you use to test the validity of a questionnaire? what test should i perform for a comparison of data? which test is a non pamerametric test what type of test is used to test difference of means what test to use when comparing data what test should i perform for a five point scale which test should i perform? what test should i perform to test if significance exists between statements? what test should i perform what test should i perform? what test should a physician perform what test do you use to evaluate differences between two groups what test is needed to conduct a comparative analysis why do you use a not pam tests what test should you perform for patients what test should i perform