Replication Data for: Formation of homophily in academic performance: students prefer to change their friends rather than performance

This data set contains information about time evolution of friendship networks of university and high school students. The friendship networks were reconstructed from the history of students' interactions on a popular social networking site. Each time point corresponds to 3 months period. The link from one student to another exists if she or he gave a ”like” to another at least once at given period of time. This data is combined with data about academic performance (GPA) of individual students. We compute Homophily Index, H, as Pearson's correlation coefficient between GPA of students and average GPA of their friend. We, then, track the evolution of H with time. Detailed description of data collection and analysis can be found https://arxiv.org/abs/1606.0908