From my own personal experience, that of friends, and stories I've read on the internet, the length of time married before applying for a tourist visa and whether or not the spouse was living here in the DR as a resident are major factors.
If you are married only a short time, not a DR resident, living out of the country, even part time, or frequently going out of the country after getting married, the chances of your spouse getting a tourist visa are nil.
If you are married only a short time, not a DR resident, living out of the country, even part time, or frequently going out of the country after getting married, the chances of your spouse getting a tourist visa are nil.