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Comparing effect of two different covariates on a sample doing a HB analysis.


I am studying the two different covariates' effect on the utilities of a sample using an HB analysis. For this, I have two alternatives in my mind:
1) conducting an HB with each covariate separately and comparing the utilities using a t-test
2) conducting one HB analysis without any covariates and again conducting an HB with each covariate separately, then comparing the utilities of each HB analysis with covariates to the HB analysis that has no covariates.

I would appreciate your suggestions through which method I should use.

Thank you very much
asked Sep 6, 2018 by KNT

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