Lifespan Psychology: Cognitive, Emotional, and Language Development Study Guide

Cognitive Development (Chapter 6)

Jean Piaget's Theory of Cognitive Development

Jean Piaget proposed that children actively construct knowledge as they manipulate and explore their world. His theory outlines how cognitive structures develop through interaction with the environment.

• Key Concepts:

  • Schema: Mental frameworks for organizing information.

  • Adaptation: The process of adjusting to new information through assimilation (incorporating new experiences into existing schemas) and accommodation (modifying schemas for new information).

  • Equilibration: The balance between assimilation and accommodation.

  • Stages of Development:

    • Sensorimotor (birth–2 years): Knowledge through sensory experiences and manipulating objects.

    • Preoperational (2–7 years): Symbolic thinking, egocentrism, and language development.

    • Concrete Operational (7–11 years): Logical thinking about concrete events, understanding conservation.

    • Formal Operational (12+ years): Abstract and hypothetical reasoning.

  • Strengths: Demonstrates how children’s thinking changes over time; influential in education.

  • Weaknesses: Underestimates children’s abilities; less focus on cultural factors.

• Example: Conservation tasks (e.g., understanding that the quantity of liquid remains the same despite changes in container shape) illustrate the transition from preoperational to concrete operational thinking.

Lev Vygotsky's Sociocultural Theory

Lev Vygotsky emphasized the role of social interaction and culture in cognitive development.

• Zone of Proximal Development (ZPD): The range between what a child can do alone and what they can achieve with guidance.

• Scaffolding: Support provided by adults or peers to help a child master a task.

• Private vs. Inner Speech: Private speech (talking to oneself) aids problem-solving and becomes internalized as inner speech.

• Emphasizes: Culture and social context in learning.

Intelligence (Chapter 8)

Theories and Measurement of Intelligence

Intelligence is a complex trait involving the ability to learn, reason, solve problems, and adapt to new situations. Psychologists have developed various theories and methods to measure intelligence.

• Key Terms:

  • IQ (Intelligence Quotient): A standardized score representing an individual's cognitive abilities compared to the population average.

  • Normal Curve: Most people score near the mean (average IQ = 100), with fewer individuals at the extremes.

  • Major Tests: Stanford-Binet, Wechsler Scales (WISC for children, WAIS for adults).

  • Types of Memory: Sensory, Short-term, Working, Long-term, and Processing Speed.

• Notable Figures: Daniel Hoffman (Board of Education), Larry P. v. Riles (legal case on intelligence testing).

Theories of Intelligence

• Multiple Intelligences (Howard Gardner): Proposes several independent intelligences (e.g., linguistic, logical-mathematical, spatial, musical, bodily-kinesthetic, interpersonal, intrapersonal, naturalistic).

• Fluid & Crystallized Intelligence (Raymond Cattell):

  • Fluid Intelligence: Ability to solve new problems, use logic in new situations, and identify patterns.

  • Crystallized Intelligence: Knowledge acquired through experience and education.

• Triarchic Theory (Robert Sternberg): Analytical, creative, and practical intelligence.

• Emotional Intelligence (EQ): Ability to perceive, understand, manage, and use emotions effectively.

• Bayley Scales: Infant intelligence assessment.

• Flynn Effect: The observed rise in average IQ scores over time.

Example:

• Comparing a child’s performance on the WISC to the normal curve helps identify intellectual disabilities or giftedness.

Emotional Development & Attachment (Chapter 10)

Theories of Attachment and Emotional Development

Emotional development involves learning to recognize, express, and manage feelings, while attachment refers to the emotional bond between a child and caregiver.

• Key Theorists: Bowlby, Ainsworth, Freud, Harlow, Lorenz, Kagan.

• Bowlby’s Attachment Theory: Attachment is an innate system that ensures survival by keeping infants close to caregivers.

• Ainsworth’s Strange Situation: Laboratory procedure to assess attachment styles in infants:

  • Secure Attachment: Child is distressed when caregiver leaves but comforted upon return.

  • Avoidant Attachment: Child avoids caregiver after separation.

  • Resistant (Ambivalent) Attachment: Child is very distressed and not easily comforted.

  • Disorganized Attachment: Child shows inconsistent, confused behaviors.

• Harlow’s Monkey Studies: Demonstrated the importance of comfort and contact in attachment.

• Kagan’s Temperament Theory: Focuses on individual differences in emotional reactivity and self-regulation.

Attachment Disorders and Interventions

• Reactive Attachment Disorder (RAD): Withdrawal, limited emotion.

• Disinhibited Social Engagement Disorder (DSED): Overfriendly with strangers.

• Co-occurring Conditions: ADHD, depression, PTSD, OCD, conduct disorder, bipolar disorder.

• Failure to Thrive: Poor growth due to neglect or lack of bonding.

• Interventions:

  • Infants: Consistency, nurturing.

  • Children: Play therapy.

  • Adolescents: Counseling.

  • Adults: Relationship therapy.

• Other Topics: Erikson’s stages, Ainsworth’s Caregiving Hypothesis, brain changes, sociopathy, antisocial personality disorder.

Language Development (Chapter 9)

Key Concepts in Language Development

Language is a system of symbols used for communication. Its development is a major milestone in cognitive growth.

• Components of Language:

  • Phonology: Sound system of a language.

  • Phoneme: Smallest unit of sound.

  • Morphology: Structure of words.

  • Syntax: Rules for sentence structure.

  • Semantics: Meaning of words and sentences.

  • Pragmatics: Social rules for language use.

• Human Language: Communication is both symbolic and creative.

• Language Acquisition Device (LAD): Chomsky’s theory of an innate mechanism for language learning.

• Critical Period Hypothesis: Early years are crucial for language development.

• Brain Areas: Broca’s area (speech production), Wernicke’s area (comprehension).

• Aphasia: Language impairment due to brain injury.

• Example: Genie case (child deprived of language exposure) illustrates the importance of early language input.

Additional Reading Notes

• Chapter 6: Review all cognitive development theories.

• Chapter 8: Focus on intelligence tests, types, and domain-specific abilities.

• Chapter 9: Only study listed topics (components of language, acquisition, brain areas).

• Chapter 10: Review temperament (Chess & Thomas), love, and dating.