PSYC – Infancy and Early Development | 30+ Q&A | Attachment, Motor Skills, Sensorimotor Stage, SIDS | Louisiana State University

This document contains 30+ professionally solved and verified multiple-choice questions from the Infancy unit of a Psychology course at Louisiana State University, intended for the 2025/2026 academic year. Structured in a Q&A format, it covers foundational topics related to early human development. Key focus areas include temperament types (Thomas & Chess), Erikson’s stages (trust vs. mistrust, autonomy vs. shame and doubt), Piaget’s sensorimotor stage, attachment theory (including Harlow’s monkey experiments and Ainsworth’s attachment styles), reflexes, motor skills, and sensory development. It also explores health and safety concerns such as shaken baby syndrome and SIDS (Sudden Infant Death Syndrome), along with major developmental processes like habituation, social referencing, and reciprocal socialization. Ideal for students in Psychology, Child Development, Nursing, Education, Social Work, or Early Childhood Studies, this resource supports both exam prep and deeper conceptual understanding. Keywords: infancy, sensorimotor stage, Erikson stages, trust vs mistrust, autonomy vs shame, Piaget, attachment theory, secure attachment, Harlow monkey study, social referencing, visual cliff, gross motor skills, object permanence, SIDS, shaken baby syndrome, reflexive smiling, habituation, dishabituation, child development, reciprocal socialization