Field's research has practical applications. This is because the principles of the research that responsiveness to the child's needs is the most important when forming an attachment can be used to advise parents. Many parents make decisions about who should take on the primary caregiver role, mothers may feel pressured to stay at home and fathers may feel pressured to go back to work. This research can be used to reassure parents that fathers can become a primary caregiver, which reduces parental anxiety. Therefore, research into role of the father is an important part of applied psychology.