Hi,
I would like to run a 2x3 mixed ANOVA on SPSS. I have two groups and would like to see if the groups differ on their responses to 3 likert scale questions (of the same scale). One of the likert scale questions had a substantial negative skew so i transformed the variable using a reflect and log transformation. I then re-reflected the variable after transformation to restore the original meaning of the scores.
My question is: is it ok to run a mixed ANOVA or a repeated measures ANOVA with a transformed variable (within-subjects)? I'm wondering because only one of the likert scale questions is transformed and the other two are not.
Any advice would be greatly appreciated!
I would like to run a 2x3 mixed ANOVA on SPSS. I have two groups and would like to see if the groups differ on their responses to 3 likert scale questions (of the same scale). One of the likert scale questions had a substantial negative skew so i transformed the variable using a reflect and log transformation. I then re-reflected the variable after transformation to restore the original meaning of the scores.
My question is: is it ok to run a mixed ANOVA or a repeated measures ANOVA with a transformed variable (within-subjects)? I'm wondering because only one of the likert scale questions is transformed and the other two are not.
Any advice would be greatly appreciated!