Author Question: When have you collected enough baseline data so that you can move on to the treatment phase of the ... (Read 109 times)

tatyanajohnson · **on:** Jul 13, 2018

When have you collected enough baseline data so that you can move on to the treatment phase of the experiment?

a. after about two weeks
b. once you have at least a dozen baseline observations
c. when there is a downward trend rather than an upward trend
d. there is no trend and little variability

Question 2

What is the purpose of a table of random numbers?

a) determine the number of subjects in a study
b) decide what statistical test to use
c) randomly assign people to groups
d) number items on a questionnaire