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Thread: Regression to compare mean differences?

  1. #1
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    Regression to compare mean differences?

    Hi everyone,

    I am doing a project with two different groups (clinical and control). I want to compare their scores on a couple of variables (ex: body image disturbance), while controlling for age and BMI.

    My committee member recommended I do a regression, and noted that it would allow me to control for age and BMI and then see if they in fact differed on my variable.

    A different person recommended I do an ANCOVA to look at the same thing.

    Can anyone explain how a regression would allow me to see if they differ? Is there any advantage to using one over the other (regression or ANCOVA)? Thank you!!

  2. #2
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    Karabiner's Avatar
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    Re: Regression to compare mean differences?

    Regression (with 2 interval scaled predictors, a dummy for Group, and possibly
    the 2 interaction terms) and ANCOVA (with Group as a factor, 2 interval scaled
    covariates, and possibly the interaction terms) will produce the same results.

    With kind regards


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