Figure 2From: Estimating educational outcomes from students’ short texts on social mediaThe predictive power of the model depending on the number of posts used per user. First, users with at least 20 posts were selected. Then, for each user, N of their posts were selected to predict their academic performance (\(N = 1,\ldots, 20\)). The shaded region corresponds to the bootstrapped 90% confidence intervalBack to article page