I am conducting a single case study whereby I am identifying whether an individualised music intervention is effective at reducing agitation for a person with dementia.
More specifically, I am collecting data at 6 different time intervals (baseline, week 1-4, post-intervention) with two different psychological measures (CMAI and ABS).
I would like to examine the differences in documented agitation between the measures at each time interval point, as well as see if there was any significant differences over time within each measure.
What statistical test would be most appropriate, please? Thank you in advance for your time and response.