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I am researching a framework using regression analysis. With the beta coefficients I now want to calculate the correlation between my variables with the influence of another. So I have the beta of 0,465 of the independent on the dependent variable with a sample size of 176; additionally another independent variable has an impact on the relationship with beta 0,733 and the sample size 30. How do I calculate the final impact considering both different sample sizes?

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  • $\begingroup$ It's not clear what you're looking for. Could you explain what you mean by "final impact"? $\endgroup$ – whuber Jul 25 '17 at 14:18
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You don't. You have to include both variable in the model in order to do this, and the model has to be on one set of data.

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