2). Furthermore, there are limitations in the Edmund Kemper case study analysis, such as the lack of quantitative data. For example, there were few quantitative approaches that incorporated the accumulation of statistical data in order to further validate qualitative data, which involved describing Kemper's experiences in detailed explanations. Edmund Kemper's treatment recommendations convey that psychodynamic interventions are useful for eliminating aggressive impulses in the unconscious component of Kemper's personality (McLeod, 2007, para. 4). For example, psychodynamic interventions include free association, object relations, and dream analysis that focus on understanding unconscious struggles, which lead Kemper to resort to aggression and antisocial tendencies (McLeod, 2007, para. 4) . Ultimately, there are suggestions for future research aimed at theoretical explanations such as social bonding theory. For example, in social bonds theory there should be interactions between the level of self-control and opportunities for criminality instead of emphasizing exclusively between social bonds.