Hi All,

I have tried searching for a similar case but haven't found it yet!
I need to run a regression for a project at university, and due to the subject I'm analyzing I have a relatively small sample size of 70 obs but many independent variables I would like to test.
Do you think it would be a good idea to split my independent variables into groups and test the dependent variable for each group at a time?
They could be splitted by a genre since each of these belongs to a different one (it concerns financial factors like profitability, liquidity and so on).


Do you think I risk heteroskedasticity and misspecification by proceeding in this way?

thank you in advance for your help!