I am studying the effect of religious cleavages on the duration of a civil war. My dependent variable is the duration of a war (measured in years), my independent variable is religious cleavages, it is dichotomous (10) and I have created a dummy variable for it. I have then proceeded to do a linear regression (which I assume is the right test I should be using?) but when I want to check for the assumptions, I am unsure as to how to interpret the graphs.
Checking for linearity: (see attached screenshot), there is clearly no linearity, does that mean the model I am using is not the right one? What about homoscedasticity assumption?
And how do I check for normality? I did QQ Plots but Im not sure this is the right way: (results attached in screenshots n2 and 3)
Thank you.
Checking for linearity: (see attached screenshot), there is clearly no linearity, does that mean the model I am using is not the right one? What about homoscedasticity assumption?
And how do I check for normality? I did QQ Plots but Im not sure this is the right way: (results attached in screenshots n2 and 3)
Thank you.
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