Past studies explained gender and crime through psychological and biological aspects. However, now specific sociological theories analyze the gender differences when it comes to committing crime. Brezina's research focuses on the "general strain theory," specifically, on why males and females have a gap rate in crime. One view is that the gender gap of crime is associated with different strains and various types of experiences males and females go through. For instance, their socialization, life events, home life, and relationships differ from one another. Because of this, research suggests that boys and men are more closely related to crime and delinquency. Brezina argues that because boys are more exposed to harsh punishment from their parents while growing up, negative experiences at school, no support system, and homelessness, they have more freedom to commit a crime. Brezina states that some boys and men tend to see crime as acceptable because they favor their "internalized 'masculine' values."