Yes, going to the library might be good for you

A study by Felly Chiteng Kot and Jennifer L. Jones has found that

"using a given library resource was associated with a small, but also meaningful, gain in first-term grade point average, net of other factors."

But, correlation does not necessarily mean causation. Could it be that bright people like to go to libraries?

Still, most students are likely to behave better in the library than other places, so let's not quibble too much.