Supporting evidence

• What evidence suggests criminal behaviour runs in families?

  • osborn & west (1979) found that:

  • 40% of sons with criminal fathers had committed a crime by the age of 18

  • compared to only 13% of sons with non-criminal fathers
• What study supports peer influence in deviant behaviour?

  • Akers et Al (1979) surveyed 2,500 adolescents and found that:

  • 68% of marijuana use and 55% of alcohol use could be explained by differential association, reinforcement and imitation