Hi, I am wondering if you guys could help me with a problem I'm
having?  I have collected some ordinal data (non-parametric)
from an experiment. The results come from a questionnaire
completed by participants who answered using 5 discrete
categories (essentially 1-5).  Originally I collected the data
over a period of four days under one condition and was planning
to do a Friedman test to determine any statistical significance.
However, the data I collected raised another question. So using
the same participants as before I decided to conduct the
experiment again under a different condition. An example of the
data I collected is:  Day 1 Day 2 Day 3 Day 4 Condition 1 1 2 4
3 Condition 2 3 4 5 4  (Results are provided as median values, I
would much rather work with mean values if possible)  And this
is where I'm stuck, what statistical test do I use to determine
any statistical significance between the two conditions?  The
internet doesn't seem to give me a straight answer here and I'm
confused. If this was int