Higher scores on the Prosocial behaviour scale reflect strengths, whereas higher scores on the other four scales reflect difficulties. A Total difficulty score can be computed by summing the scale scores of the negative attributions; Emotional symptoms, Conduct problems, Hyperactivity-Inattention and Peer problems (range 0–40). In addition, it is possible to calculate scores for Internalising (summing scale scores of Emotional symptoms and Peer problems; range 0–20) and Externalising (summing scale scores of Conduct problems and Hyperactivity-Inattention; range 0–20) [16, 26].