please do not laugh


I have a scale that is used 5 times per participant to evaluate something. I am not sure right now which is the correct test to see, if there are differences in the evaluation of the participants of the five topics.
Which would you suggest?
I have measured the scales on an ordinal level and created the mean of each of the five scales. A factor analysis has shown, that the items represent a single factor. The column of the mean is a "continuous", "decimal" level.
Thank you already.
Olaf