If i wanted to make a tiny sweater for a doll

if i wanted to make a 16 inch doll sweater, could i take a 12 inch doll pattern and just increase the needle size? I have a secret santa on a doll board and i wanted to make her a doll sweater and there arent any patterns i can locate for Tonner dolls.

You could. I think I would increase the wool size too so the fabric isn’t too loose. I don’t know if you looked at these, but there are a bunch

http://www.knittingpatterncentral.com/directory/dolls_clothes.php