Some of these comments focus on thoughts that have not been evaluated by the theory. According to Ball (2011), Hagan's hypothesis does not take into account circumstances other than the balance of power within the family that may impact delinquency, for example power and social class in the eyes of the general public. An example would be single-parent families living in low-income areas. Ball also clarified that the hypothesis was simply being used to explain what they call "regular" or minor delinquent conduct, not perpetual offenders. Finally, they claim that Hagan's theory has not been compared to other major theories, so it is difficult to say whether Hagan's findings are legitimate. According to Delisi, Hewitt, and Regili (2010), a significant assessment of power control theory is that sexual orientation contrasts within delinquent behavior have little to do with the socialization of parental control. They say that sex differences are primarily due to biological contrasts between men and women and their penchant for energetic, antisocial behavior..