Cross Validated Asked by jennifer ruurs on November 9, 2021
I have two datasets and they both have the same set of independent variables:
The meaning of the dependent variables are the same but their scales are different.
I want to check whether Group B and Group A perceived the Happiness differently by checking whether the combination (with interaction and without) of our independent variables effected the happiness differently from each-other.
How can I test this?
Update:
Applying the assumption: a scale transformation: 1 till 3 = bad and 4 and 5 = good is possible for me.I want to merge the two groups together.
You're probably going to need make assumptions on the dependents in A in order to map them onto the same scale as B (a very naive and simple example would be to convert all values above 3 from A to 1 and below 3 from A to 0, the assumption being these values correspond to the same in B etc.)
Then you're just comparing proportions of similarly scaled categorical variables, which can easily be done with a $chi^2$ test.
Answered by Dale C on November 9, 2021
I think, that you cannot. Comparing data requires stating objective, numerical differences, which you don't have. You would have to assume, that answers 'yes' or 'no' corresponds to some numbers, ranges of numbers or some combination of numbers. But that would be hard simplification only based on your subjective assumption. People perception of these two scales may be so different, that ascribing any numbers would be impossible.
Answered by Kamil Kaczmarek on November 9, 2021
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