Most single parents households are run by mother, and the absence of a father coupled with lower household income can increase the risk of children performing poorly in school. the lack of financial support from a father often results in single mother working more, which can in turn affect children because they receive less attention and guidance with their homework. Researcher virginia knox concluded from data from the natinal Longitudinal suvey of youth, that for every 100 dollar support mothers receive, their children standardized test scores increase by 1/8 to 7/10 of a point. in addition, Knox found that children with single mother who have contact and emotional support from their father tend to do better in school than a children who have no contact with their fathers.