Your smart phone can predict your grades

Interesting but worrying too:

The SmartGPA study uses passive sensing data and self-reports from students’ smartphones to understand individual behavioral differences between high and low performers during a single 10-week term. We propose new methods for better understanding study (e.g., study duration) and social (e.g., partying) behavior of a group of undergraduates. We show that there are a number of important behavioral factors automatically inferred from smartphones that significantly correlate with term and cumulative GPA, including time series analysis of activity, conversational interaction, mobility, class attendance, studying, and partying. We propose a simple model based on linear regression with lasso regularization that can accurately predict cumulative GPA. The predicted GPA strongly correlates with the ground truth from students’ transcripts…Our results open the way for novel interventions to improve academic performance.

That is from a new paper by Rui Wang, Gabriella Harariy, Peilin Hao, Xia Zhou, and Andrew T. Campbell (pdf).  Class attendance, by the way, does not predict grades very well.

For the pointers I thank Eric Barker and Dan Gould.


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