Hazan and Shaver (1987) aimed to investigate whether attachment in childhood would be reflected in adultromantic relationships. Specifically, they wanted to explore the link between people's attachment styles and how they behave in and perceive adult romantic relationships.
Attachment styles developed in childhood have a lasting impact on adult relationships. The study provided strong evidence for the continuity between early attachment experiences and later romantic relationships. Secure attachment in childhood seemed to predict positive, trusting, and stable relationships in adulthood, while insecure attachment patterns (avoidant or resistant) were linked to more problematic and less satisfying romantic relationships. This research helped extend Bowlby’s attachment theory into adult relationships, highlighting the importance of early attachment experiences