Too broke to help your college-aged child with expenses? Cheer up.

A new study by University of California, Merced, sociology professor Laura T. Hamilton has found that students' GPAs decreased with increased financial support from their parents.

That's the good news.

The study also found that students with financial aid from their parents were more likely to complete college and earn a degree.

The study, "More is More or More is Less? Parental Financial Investments during College," will appear in the February issue of the American Sociological Review and has been posted on the publisher's website: .