AO3

• a weakness is that there is a lack of clarity over the question being asked as it is more complicated as it sounds as fathers have been seen behaving in a more maternal way which makes it difficult to offer a simple answer to the role of the father
• a weakness is that findings vary according to methodolgists as some longtitudinal studies suggest that fathers as a secondary attachment has an important and distinctive role in child development. If this was the case then you could see children who grow up in a single mother household would turn out different. This means that the question if fathers play a role is unanswered