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Social-Emotional
Development

Explore how attachment, identity, and emotional growth unfold from infancy through late adulthood: the theories, stages, and research that shape our understanding of human connection.

AP Psychology

What Is Social-Emotional Development?

Social-emotional development refers to how people form relationships, understand emotions, and develop a sense of self throughout their lives. It encompasses attachment bonds, emotional regulation, moral reasoning, and identity formation.

Three Pillars of Social-Emotional Growth

Attachment
The emotional bond between infant and caregiver that shapes future relationships and emotional security.
Identity
The evolving sense of "who am I?" that develops through psychosocial crises from childhood through adulthood.
Moral Reasoning
The cognitive framework for deciding right and wrong, progressing from self-interest to universal ethical principles.

Ainsworth's Attachment Styles

Caregiver Sensitivity Secure ~60% Avoidant ~20% Anxious- Ambivalent ~15% Disorganized ~5% Based on the Strange Situation experiment (Mary Ainsworth, 1970s)

Erikson's Eight Psychosocial Stages

1. Trust vs. Mistrust Infancy (0-1 yr): Dependable care → trust Virtue: Hope 2. Autonomy vs. Shame Toddler (1-3 yr): Exploration → will Virtue: Will 3. Initiative vs. Guilt Preschool (3-6 yr): Leading → purpose Virtue: Purpose 4. Industry vs. Inferiority School age (6-12 yr): Mastery → competence Virtue: Competence 5. Identity vs. Role Confusion Adolescence (12-18 yr): "Who am I?" Virtue: Fidelity 6. Intimacy vs. Isolation Young adult (18-40 yr): Deep bonds → love Virtue: Love 7. Generativity vs. Stagnation Middle adult (40-65 yr): Contributing → care Virtue: Care 8. Integrity vs. Despair Late adult (65+ yr): Reflecting → wisdom Virtue: Wisdom

Understanding Erikson's Crisis Model

Each stage presents a psychosocial crisis: a tension between two opposing outcomes. Successfully resolving the crisis yields a virtue (a psychological strength). Failure does not mean permanent damage: Erikson believed earlier crises could be revisited later in life.

Attachment vs. Temperament

Attachment Temperament
Definition Emotional bond to caregiver Inborn emotional reactivity
Origin Nurture (caregiver responsiveness) Nature (biological/genetic)
Key Researcher Mary Ainsworth Thomas & Chess
Categories Secure, Avoidant, Anxious, Disorganized Easy, Difficult, Slow-to-warm-up
Can Change? Yes (with new relationships) Relatively stable, but modifiable

Kohlberg's Stages of Moral Reasoning

Pre-conventional Stage 1: Obedience (avoid punishment) Stage 2: Self-interest (what's in it for me?) Conventional Stage 3: Good boy/girl (seeking approval) Stage 4: Law and order (maintaining social system) Post-conventional Stage 5: Social contract (laws serve the greater good) Stage 6: Universal ethical principles (justice above law) Moral Complexity

Harlow's Contact Comfort Experiment

Wire Mother
Provided milk (nourishment) but no soft contact. Monkeys only visited when hungry.
Cloth Mother
Provided no food but offered soft, warm contact. Monkeys clung to this surrogate for comfort and security.

How to Identify the Stage

1
Read the age cue. Erikson's stages are tied to specific life periods. Identify the approximate age of the person in the scenario.
2
Spot the conflict. What is the person struggling with? Identity? Intimacy? Trust? Match it to the crisis pair.
3
Look for the virtue. If the scenario describes a positive outcome, identify which virtue emerged: hope, will, purpose, competence, fidelity, love, care, or wisdom.
4
Check for theorist keywords. "Psychosocial" = Erikson. "Strange Situation" = Ainsworth. "Heinz dilemma" = Kohlberg. "Contact comfort" = Harlow.

Example: The Anxious Toddler

Scenario: A 2-year-old cries intensely when their mother leaves the room. When she returns, the child clings to her but also pushes her away, refusing to be comforted easily.

Example: The Retiring Executive

Scenario: A 68-year-old woman reflects on her career and family. She feels proud of mentoring young colleagues and raising children who are now thriving adults. She says, "I lived a meaningful life."

Example: The Heinz Dilemma

Scenario: A man's wife is dying. A druggist charges 10 times the production cost for the only cure. The man can't afford it and considers stealing the drug. Three students respond differently:

Student A
"He shouldn't steal it because he'll get caught and go to jail."
Student B
"He should steal it because a good husband is supposed to protect his wife."
Student C
"He should steal it because the right to life outweighs property rights."

Development Across the Lifespan

0-1 Trust 1-3 Autonomy 3-6 Initiative 6-12 Industry 12-18 Identity 18-40 Intimacy 40-65 Genera- tivity 65+ Integrity Social-Emotional Complexity Attachment Influence Age (years)

Common Mistakes on the AP Exam

Confusing Erikson with Piaget
Erikson covers social-emotional development. Piaget covers cognitive development (sensorimotor, preoperational, etc.). Don't mix their stages.
Treating Attachment as Fixed
Attachment styles can change over the lifespan. Secure attachment can become insecure after trauma, and insecure attachment can shift with new, stable relationships.
Skipping Kohlberg's Levels
Students often confuse stages 3 and 5. Stage 3 is about approval from others; Stage 5 is about abstract social contracts. Look for the reasoning, not just the conclusion.

Theorist Summary Table

Theorist Focus Key Concept Famous Study
Erikson Psychosocial stages 8 crises across lifespan Identity crisis research
Ainsworth Infant attachment 4 attachment styles Strange Situation
Kohlberg Moral reasoning 3 levels, 6 stages Heinz dilemma
Harlow Attachment formation Contact comfort Wire/cloth mother
Bowlby Attachment theory Internal working models Maternal deprivation

Question 1 of 5

In Ainsworth's Strange Situation experiment, a child who shows little distress when the caregiver leaves and avoids contact upon return would be classified as having which attachment style?

Question 2 of 5

According to Erikson, a 45-year-old who feels stuck in a routine and disconnected from meaningful contribution is most likely experiencing a crisis in which stage?

Question 3 of 5

A child says, "I won't steal the cookie because Mommy will spank me." According to Kohlberg, this reasoning reflects which level of moral development?

Question 4 of 5

Harlow's research with rhesus monkeys demonstrated that infant attachment is primarily driven by:

Question 5 of 5

An adolescent is experimenting with different social groups, career interests, and personal values. According to Erikson, successfully navigating this period will result in which virtue?