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Math Help - Adding a control variable and testing for significance

  1. #1
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    Jul 2009
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    Adding a control variable and testing for significance

    "Perform a controlled comparison, with a test of statistical significance."

    That's what I'm trying to do. My independent variable is "religious importance," a four-category ordinal variable. My dependent variable is "moralism," a 17-value variable that I'm treating as interval. I would like to control for age, an interval variable.

    My question is how can I test for statistical significance with the control variable added to the mix? I already did a two-sample t-test for my IV and DV, but I'm not sure where to go from there.

    Thanks for any assistance.
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  2. #2
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    you could add dummy variables for a certain age threshold, if these turn out to be significant then you have your answer...i think
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