Turns out, the way your precious little angel handles that balance is the BEST way to figure out how their grades are going to turn out. 

In a new study at George Mason University, a researcher found that the two best ways to predict a college student's GPA are the amount of time they spend studying . . . and the amount of time they spend drinking.

Alcohol was a better predictor than the amount of time a student spends watching TV, messing around on the Internet . . . or even spends in class.

Todd Wyatt, who led the study, says, quote, "[With] more time spent partying with alcohol, there's a significant decrease in GPA . . . these students might not be reaching their full potential as a result of the alcohol consumption." 

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