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 sum, and report the unstandardized coefficients?
Yes. Compute the likert with mean and yes or no with frequent count and percentage.
Both are acceptable. Just mention it in your writeup along with your results.
Should I compute my scales by using mean scores or sum of the scores?
Use mean scores when you are conducting a quantitative research using parametric statistics with metric data (Interval / ratio). Use sum of scores when you are using non-parametric statistics with non-metric data like ordinal etc.
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