Attachment in psychology refers to the deep emotional bond that forms between an infant and their primary caregiver, typically within the first two years of life. This topic is central to understanding human development, as attachment quality influences social, emotional, and cognitive outcomes throughout life. In AQA A-Level Psychology, you'll explore key theories explaining how and why attachments form, the stages of attachment development, and the long-term impact of early attachment experiences on relationships and mental health.

The study of attachment is rooted in evolutionary theory, with John Bowlby proposing that attachment behaviours are biologically programmed to ensure survival. You'll examine classic studies like Ainsworth's 'Strange Situation' procedure, which identified different attachment types (secure, insecure-avoidant, insecure-resistant), and later research on cultural variations and the role of the father. Understanding attachment helps explain phenomena like separation anxiety, stranger anxiety, and the importance of sensitive, responsive caregiving.

This topic connects to broader psychological themes such as developmental psychology, individual differences, and research methods. It also has real-world applications in childcare, social work, and parenting interventions. Mastery of attachment theory is essential for exam success, as it frequently appears in essays and short-answer questions, requiring you to evaluate theories, studies, and practical implications critically.