You are interested in knowing whether morning eating habits affect energy levels

You are interested in knowing whether morning eating habits affect energy levels later in the day. Nine subjects are tested under three conditions in a counterbalanced design: no breakfast, coffee only, or juice plus cereal. The following are hypothetical self ratings taken at 2 p.m. The scale ranges from 1 (very little energy) to 5 (very energetic). Use Friedman?? test to evaluate the results and compute effect size.

You may also like