This can be seen as a rigid attitude and has played a large part in influencing childcare decisions through the establishment of a connection between maternal absence, child care (including institutional and foster care) and later developmental problems. Studies from Rutter and Ainsworth have agreed with an attachment principle but have developed it to include situational variables such as previous home life, relationships, depth of bonding and care and reasons and reactions of the caregiver in dealing with an absence and return situation that can have an effect on the child above any basic separation. The length of absence, quality of care giving within that absence and inherent flexibility and adaptability of infants as well as their capability to make multiple attachments all need to be taken into account within this area.During the 1940s Bowlby made a connection between the attachment of an infant and mother and the shaping of an infant’s personality. From this an association was placed on the mother caring for the child instead of working. At this time welfare policies were focussed on a post war development of the family, and working freedoms afforded to women during the war were heavily curtailed as was war time nursery care. Popular policies suggested women should now be investing in their families as a duty.