Should I compute my scales by averaging scores or by summing?

#1
Hi everyone
I am conducting a research involving a serial mediation analysis using Hayes's Process (Model 6).My scales are all Likert type except one (this one measures Borderline personality semptoms in which 1=Yes, 0=No) Should I compute my scales by average or by total score? It doesn't make a difference considering standardized coefficients, but I'm going to report unstandardized coefficients, which is affected by how you compute your scales (sum or mean). Is it okey that computing Likert ones by avareging scores and the other one (yes/no) by summing scores, and report the unstandardized coefficients?
 

Karabiner

TS Contributor
#2
Since the sum and the average are equivalent here (MEAN = SUM / constant),
in my humble opinion you could just use the version which is or convenient for
me to interpret.

With kind regards

Karabiner