Future relationships will follow the pattern based on childhood attachment, impacting childhood relationships, adult relationships and relationships with one's own children
When a child has a secure loving relationship with their primary caregiver, they will assume all relationships should be like that and will seek out functional relationships and be functional within these relationships
Hazan and Shaver (1987) conducted a 'love quiz' study, they asked people to respond to a love quiz in the newspaper, the quiz examined feelings in a romantic relationship
Self-report techniques, which were used, can be less valid as participants may under or over-exaggerate
There may also be bias in the type of person who replies to adverts in newspapers: e.g. people who had recently suffered a bad break-up and wished to vent their feelings
It is difficult to establish a cause and effect as it is a correlation: further research would be required