Common in the research literature on bullying is the dichotomy of bullying and victim behavior. The present definition of a bully is a person who has engaged in repeated acts of aggression or harm to persons over whom he or she has power. The literature on bullies examines gender differences at length. However, the bully-victim literature has yet…

Aptitude-treatment interactions (ATIs) refer to the covariation between learner characteristic and instructional treatment in relation to some outcome measure. To systematically test for ATI, an intelligent tutoring system instructing in basic principles of electricity was chosen as a complex but controlled learning task. Two learning environments…