I have data from a 5 point Likert scale item which approximately 1/4 of the responses only account for 1 through 4 of the 1 through 5 available.
Do I have to standardize the min/max response categories that is reported in SPSS descriptives for output or will creating z-scores be sufficient?
The variables have differing degrees of distributions due to this and the transform functions (e.g., SQRT, LG10) have not solved my problem. My sample (N=162) is the first part of a test/retest for instrument reliability. I have run all the processes thinking that what looked normal and based on criterion (2 or 3 times the SD is sufficient to estimate skewness to identify 'normal distribution' regardless of visual).
I'm at the point of frustration and exhaustion...any expert advice?