Need help in deciding whether to use parametric test or non parametric test ?

#1
I am working on an assignment. I have sample study of 9 participants suffering from a mental disorder and the participants mood scores are being measured at three time points after subjecting these participants to a new intervention.The mood scores are normally distributed. Should I run a parametric test on SPSS considering the mood scores are normally distributed or conduct a non parametric test on SPSS as the sample size is less than 10.
Can anyone please guide me .
 

Karabiner

TS Contributor
#2
The mood scores are normally distributed.
Mood scores are not normally distributed. And with just n=9 you cannot assess how serious
the deviation from normal is. By the way, how was mood actually measured?

With kind regards

K.