Theoretical Approaches to Human Development

Theoretical Approaches to Human Development

  • Understanding Human Lifespan Development

    • Psychologists study human lifespan development to understand how humans change and grow over time.
    • Developmental psychology is the subfield focusing on human development.

  • Theoretical Approaches

    • Theoretical lenses help explore factors influencing individual change.

Psychoanalytic Theories

  • One of the earliest approaches in developmental psychology.

    • Key Concepts:
    • Human mental drives, emotions, conflicts, and needs are often unconscious.
    • Psychoanalytic theories often hinge on childhood experiences impacting adult behavior.

  • Sigmund Freud's Contributions:

    • Proposed that humans go through five psychosexual stages:
    1. Oral Stage:
      • Pleasure from sucking (pacifiers, bottles).
      • Learning about environment through the mouth.
    2. Anal Stage:
      • Focus on controlling bladder and bowel movements.
    3. Phallic Stage:
      • Awareness of body, attraction to opposite-sex parent.
    4. Latency Stage:
      • Sexual feelings are dormant.
    5. Genital Stage:
      • Begins at puberty, developing sexual and romantic feelings, and forming intimate relationships.
    • Freud believed a healthy personality comes from a balance of parental pampering and neglect.
    • His theories were controversial, objected to for perceived sexism (Aldrich et al, 2014).

  • Erik Erikson's Theory of Identity Development:

    • Proposed eight psychosocial crises throughout life, each requiring significant life decisions:
    1. Trust vs. Mistrust (infancy)
    2. Autonomy vs. Shame/Doubt (toddlerhood)
    3. Initiative vs. Guilt (preschool years)
    4. Industry vs. Inferiority (school-age)
    5. Identity vs. Role Confusion (adolescence)
    6. Intimacy vs. Isolation (young adulthood)
    7. Generativity vs. Stagnation (middle adulthood)
    8. Integrity vs. Despair (late adulthood)
    • Highlights that each decision impacts self-concept and personal development.

Behaviorist Approaches

  • Observable Behaviors:
    • Focus on measurable actions rather than unconscious thoughts.
  • Learning Principles:
    • Behaviorism suggests that experiences teach us how to respond to stimuli via:
    • Classical Conditioning: Learning through association (e.g., Pavlov's dogs).
    • Operant Conditioning: Learning through consequences (rewards and punishments) (B.F. Skinner).
  • Social Learning Theory:
    • Highlights the role of observational learning, where individuals learn by mimicking others (e.g., children imitating parents using toys).
    • Albert Bandura's Concept of Reciprocal Determinism:
    • Interaction between personal factors, behavior, and environment influences development (Bandura, 2011).

Cognitive and Contextual Approaches

  • Cognitive Development Models:
    • Focus on how thinking evolves over time.
    • Development includes key milestones:
    • Language acquisition
    • Problem-solving skills
    • Cognitive frameworks become increasingly sophisticated as individuals age.
  • Contextual Theories:
    • Emphasize the impact of internal and external environments on development.
    • Urie Bronfenbrenner's Bioecological Model:
    • Illustrates layers of influence on a person's life:
      • Microsystem: Immediate environment (family, school).
      • Mesosystem: Interactions between microsystems (family influences on schooling).
      • Exosystem: Larger societal influences not directly experienced (community safety, school funding).
      • Macrosystem: Broader societal norms and culture.
      • Chronosystem: Changes over time impacting development (e.g., historical events).

Nature vs. Nurture

  • Hereditary vs. Environmental Influences:
    • Major debate in psychology regarding the extent to which our genetic makeup (nature) versus our experiences (nurture) shape us.
    • Charles Darwin's Perspective:
    • Suggested behaviors essential for survival are more likely passed to future generations.
  • Behavioral Genetics:
    • Examines hereditary influences on behavior (Eirich et al, 2023; Rimfeld et al, 2019).
    • Key Investigative Methods:
    • Family Studies: Compare traits among relatives.
    • Twin Studies: Compare identical and fraternal twins to determine genetic versus environmental influences.
    • Adoption Studies: Offer insight into environmental factors when comparing adopted and biological relatives.
  • Genotype vs. Phenotype:
    • Genotype: Genetic makeup that encompasses potential characteristics.
    • Phenotype: The observable traits resulting from the interplay of genotype and environment.
    • The relationship between genotype and phenotype illustrates human diversity, constrained by genetic boundaries.

Developmental Research Methods

  • Research Designs in Developmental Psychology:
    • Two primary approaches:
    1. Cross-Sectional Design:
      • Observes different age groups at one point in time to gather insights about developmental differences across ages.
      • Potential confounding factors include varying social contexts influencing behavior over time.
    2. Longitudinal Design:
      • Studies the same participants over an extended period to observe changes in development.
      • Provides deeper insights into actual developmental trajectories, though time-consuming and susceptible to participant drop-out.
  • Pros and Cons of Research Methods:
    • Both cross-sectional and longitudinal designs have strengths and weaknesses that contribute to our understanding of human developmental stages.