I am working on a mediated model where M mediates the relationship between X and Y and I have one control variable. The data I am using is from 3 different countries with different sample sizes (46, 64 and 29, total n=139). I created country dummy variables where C1 is 1 for the first country and 0 for the other two, C2 is 1 for the second country and 0 for the first and last and included both in my model. When I ran my analysis (using PLS-SEM in SmartPLS), I got significant results for the main and mediated effects.
My question is, can I conclude that my results can be generalized across countries? and does the significant effects of C1 and C2 on Y matter?
Any further analysis I should consider?