Study Saturday: How to Succeed in Developmental Psychology

Developmental Psychology (often called Lifespan Development) covers human development from conception through death. For pre-PT students, this course is uniquely relevant because physical therapists treat patients across the entire age spectrum. Whether you specialize in pediatrics, geriatrics, or anything between, you need to understand what normal development looks like at every stage to recognize when something is off.

Why This Course Matters for PT

Pediatric physical therapy. PTs working with children must understand normal motor development milestones to identify delays and design interventions. Knowing that an infant should sit independently around 6-7 months, or that postural control is foundational to gross motor skills, directly informs clinical assessment. Understanding cognitive stages (Piaget) also helps PTs communicate appropriately with child patients and set realistic goals.

Geriatric physical therapy. Normal aging affects cognition, balance, sensory processing, bone density, and joint health. PTs must distinguish normal age-related changes from pathological decline. Understanding Erikson's integrity vs. despair stage helps PTs support older adults emotionally through rehabilitation, especially after life-altering events like hip fractures or strokes. Cognitive changes in late adulthood affect how PTs should deliver instructions and design home exercise programs.

Motor development across the lifespan. Dynamic systems theory, taught in developmental psychology, explains that motor development involves the interaction of body, brain, and environment. This is core PT philosophy. A 3-year-old learns motor skills differently than a 70-year-old recovering from a knee replacement.

Behavior change and motivation. Understanding psychosocial needs at each life stage helps PTs improve patient adherence. Adolescent patients have different motivational drivers than middle-aged adults or elderly patients. Developmental psychology teaches you why.

What You Will Cover

A standard lifespan development course includes:

• Foundations: research methods (longitudinal, cross-sectional designs), nature vs. nurture, major theoretical frameworks (Piaget, Erikson, Vygotsky, Kohlberg, Bronfenbrenner, attachment theory)
• Prenatal and infancy: genetics, prenatal stages, teratogens, motor milestones, sensory development, attachment formation, temperament
• Early childhood: gross and fine motor development, preoperational thinking, language acquisition, parenting styles, play and socialization
• Middle childhood: concrete operational thinking, memory and learning, moral development, peer relationships
• Adolescence: puberty, formal operational thinking, identity formation, risk-taking, peer influence
• Early adulthood: physical peak, intimacy vs. isolation, career development, relationships
• Middle adulthood: generativity vs. stagnation, cognitive stability, midlife transitions, caregiving
• Late adulthood: physical aging, cognitive changes, integrity vs. despair, retirement, death and bereavement

Study Strategies That Work

Build comparison charts across theorists. Create side-by-side tables comparing Piaget, Erikson, Kohlberg, Vygotsky, and Freud across the same age ranges. Seeing how their stage models overlap and differ at each life phase locks in the distinctions. This is the single most effective study technique for this course.

Draw visual timelines. Create a single large timeline from prenatal through late adulthood and plot physical, cognitive, and psychosocial milestones on parallel tracks. This gives you a spatial anchor for where everything falls in the lifespan.

Create mnemonics for stage sequences. For Erikson's 8 stages (Trust, Autonomy, Initiative, Industry, Identity, Intimacy, Generativity, Integrity), build a memorable phrase from the first letters. Do the same for Piaget's 4 stages (Sensorimotor, Preoperational, Concrete Operational, Formal Operational).

Apply concepts to real people. Connect each developmental stage to someone you know. Think about a toddler when studying early childhood, a teenager for adolescence, a grandparent for late adulthood. Personal connections create stronger memory anchors than abstract definitions.

Use spaced repetition for milestones and stages. Anki is ideal for the factual recall this course demands: stage names, ages, milestone names, and theorist contributions. Study daily in short sessions rather than cramming before exams.

Study in chronological blocks. Rather than studying all of Piaget at once or all of Erikson at once, study each life stage as a unit and cover all theorists' views on that stage together. This matches how most courses are structured and how exams are organized.

Focus on the "why" behind milestones. Instead of just memorizing that babies crawl at 7-8 months, understand what prerequisite skills (postural control, upper body strength, motivation to reach objects) make crawling possible. This deeper understanding helps on application-based exam questions and translates directly to clinical reasoning.

Practice with case studies. Write short scenarios: "A 4-year-old thinks a tall glass has more water than a wide glass." Then identify the concept (conservation failure, preoperational stage). Training yourself to apply theory to situations is how most exams test the material.

Free Resources

Free textbooks:

• OpenStax Lifespan Development is a newer free textbook grounded in foundational developmental theories
• Lifespan Development: A Psychological Perspective by Lally and Valentine-French is a comprehensive 496-page open textbook rated 4.5/5 on the Open Textbook Library

Free courses:

• Lumen Learning: Lifespan Development provides a full course with text, videos, assessments, and interactive simulations
• Noba Project: Research Methods in Developmental Psychology covers research design and ethical considerations specific to developmental research

Video resources:

• CrashCourse Psychology on YouTube covers developmental topics in episodes #18 (Piaget), #19 (social and moral development), and #20 (Erikson and adolescence)
• Khan Academy: Theories of Development covers Piaget, Erikson, Kohlberg, and other developmental theorists

Practice and review:

• Fiveable: Developmental Psychology offers free study guides, notes, and review materials organized by topic
• Pre-made Anki decks for developmental psychology are available for free download

Recommended Textbooks

• Life-Span Development by John Santrock (McGraw-Hill) is the most widely adopted text, connecting research to real-world applications
• The Developing Person Through the Life Span by Kathleen Stassen Berger (Macmillan, 13th edition 2026) is a long-standing standard with the most current edition
• OpenStax Lifespan Development is free and well-suited for introductory courses
• Lifespan Development: A Psychological Perspective by Lally and Valentine-French is free and comprehensive enough for deeper pre-PT preparation

Apps Worth Using

• Anki for spaced repetition on stages, milestones, and theorist contributions
• CDC Milestone Tracker (free, iOS and Android) tracks developmental milestones from 2 months to 5 years across motor, language, cognitive, and social domains. Directly relevant to pediatric PT.
• Quizlet for pre-made flashcard sets covering Erikson's stages, Piaget's stages, and motor milestones
• Khan Academy (app available) for structured video lessons with practice exercises

How This Connects to DPT School

In your DPT program, you will take courses on lifespan rehabilitation, pediatric PT, and geriatric PT that assume you understand normal developmental trajectories. When you evaluate a 2-year-old who is not walking, you need to know that independent walking typically develops by 12-15 months to recognize the delay. When you design a home exercise program for a 75-year-old with mild cognitive changes, you need to understand what is normal aging vs. pathological decline to set appropriate expectations. Developmental psychology gives you the lifespan map that every clinical decision references.

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This is part of our Study Saturday series, where we break down how to succeed in each PT school prerequisite course. For an overview of all prerequisites, see understanding PT school prerequisites.