Figure 6
From: Stability of the personal relationship networks in a longitudinal study of middle school students

The importance of the group for the reciprocity of relationships. The figure represents: a) percentage of reciprocal links according to the individual’s gender, M-M (male-male), M-F (male-female), F-F (female-female), and b) percentage of reciprocal links according to whether the pair of individuals are in the same or different class in consecutive years.