Human Growth and Development CLEP Prep Practice Exam

John Bowlby developed the theory of development based on an individual’s social relationships, known as attachment theory. This theory focuses on how a person's early relationship with primary caregivers can affect their personal and social development. Jean Piaget focused on cognitive development, Sigmund Freud focused on psychosexual development, and Erik Erikson focused on psychosocial development. While these theories are all important in understanding human development, they do not specifically focus on social relationships as attachment theory does. Therefore, options A, C, and D are incorrect.