Final answer:
The importance of studying the attachment between a child and a primary caregiver is to understand the child's emotional development.
Step-by-step explanation:
The importance of studying the attachment between a child and a primary caregiver is to understand the child's emotional development. Attachment is a long-standing connection or bond that infants form with their caregivers. It plays a crucial role in shaping the child's emotional well-being and relationships throughout their life. John Bowlby's attachment theory emphasizes the significance of a secure attachment between parent and child for healthy social and emotional development.