LIMITATION of Grossman et al

Conflicting evidence : A limitation of the research support for the role of father is that findings change according to the methodology of the study. Grossman et Al found that fathers do have a role in children's development. If this was the case, children with single mothers or lesbian mothers would be negatively affected by the lack of a father figure. However, studies show that these children do not develop differently from those children with hetrosexual parents.