Developmental psychology asks how and why people change across the lifespan, from infancy through old age. In UCT’s PSY2006F context, the “key theories” are not just names to memorise: they are frameworks for explaining development, predicting behaviour, and evaluating evidence about children, adolescents, and adults. The most useful exam preparation comes from understanding what each theory explains well, where it falls short, and how the theories compare with one another.
1. Foundations of Developmental Psychology
Developmental psychology is the study of systematic change and continuity in behaviour, cognition, emotion, and social functioning over time. At first glance, this may sound like a broad description, but the field has a clear set of central questions. Does development happen in discrete stages or as gradual accumulation? Are children active constructors of knowledge or passive recipients of adult input? How much of development comes from biological maturation, and how much from environment and experience? These questions recur throughout PSY2006F and underpin every major theory.
A strong way to approach developmental psychology is to think in terms of domains of development. The field often distinguishes between physical development, cognitive development, language development, emotional development, and social development. These domains are closely connected rather than separate compartments. For example, a child’s improving working memory can support language learning, while social experience can shape emotional regulation and even academic performance. Theories differ partly because they prioritise different domains. Piaget foregrounded cognitive structures; Erikson foregrounded psychosocial tasks; Vygotsky foregrounded social interaction and language; attachment theorists foregrounded the emotional bond between infant and caregiver.
Core assumptions shared by developmental theories
Despite their differences, most theories in developmental psychology share four broad assumptions:
-
Development is patterned, not random.
Even when development varies widely between individuals, it usually follows identifiable regularities. For instance, many infants begin to walk during the second year of life, and many adolescents begin to think more abstractly during secondary school years. Theories try to explain these patterns. -
Development is influenced by both biology and environment.
Biological maturation, genetics, neural growth, nutrition, and hormone activity all matter. So do parenting, schooling, culture, peer relations, poverty, trauma, and language exposure. A theory that treats only one side of this relationship is usually incomplete. -
Development is cumulative and dynamic.
Early experiences can have long-term effects, but later experiences can also modify, redirect, or compensate for earlier ones. Development is not a simple straight line; it involves gains, plateaus, regression, and adaptation. -
Context matters.
Human development does not occur in a vacuum. Historical time, social class, culture, gender norms, political conditions, and family structure all shape developmental outcomes. A South African student should always remember that theories developed in Europe and North America may not automatically generalise to all contexts.
Why theory matters in exam answers
In exam writing, it is not enough to define a theory. A high-quality answer usually does four things:
- identifies the theory accurately,
- explains its core assumptions,
- applies it to a developmental problem or example,
- evaluates its strengths and limitations.
For instance, if a question asks about language development, it is not sufficient to say “Vygotsky emphasised social interaction.” A stronger answer explains how adults scaffold learning in the zone of proximal development, why private speech matters, and how this differs from Piaget’s emphasis on individual discovery. Similarly, if a question asks about adolescent identity, Erikson’s theory should be linked to the psychological crisis of identity versus role confusion, not merely named.
Typical exam pitfalls
Many students lose marks because they collapse different theories into one vague “development happens because of environment” explanation. That kind of response overlooks major disagreements. Another common mistake is using modern developmental evidence to judge older theorists without explaining historical context. Piaget’s ideas, for example, were groundbreaking because they challenged the assumption that children think like miniature adults. Even when his stage model is criticised today, it remains foundational because it changed the field’s direction.
A third pitfall is forgetting that developmental theories often answer different questions. Freud’s psychoanalytic theory focused on unconscious conflict and early emotional experiences, while Skinner’s behaviourism focused on observable learning. These theories are not simply “right” or “wrong” versions of the same claim; they are distinct explanations with different methods and assumptions.
2. Psychoanalytic and Psychosocial Theories
Psychoanalytic theories are among the most historically influential accounts of human development. They emphasise early experience, unconscious processes, emotional conflict, and the lasting importance of the parent-child relationship. In PSY2006F, the two main names are Sigmund Freud and Erik Erikson. Freud developed the original psychoanalytic model, while Erikson revised and expanded it into a lifespan psychosocial theory.
Freud: psychosexual development
Freud proposed that personality develops through a series of psychosexual stages, each centred on a particular erogenous zone and a specific conflict. Although many of Freud’s claims are difficult to test scientifically, his theory remains important because it introduced the idea that early childhood experiences shape later personality.
The stages are:
| Stage | Approximate age | Focus of pleasure/conflict | Possible fixation outcomes |
|---|---|---|---|
| Oral | 0–1 year | Mouth: sucking, feeding, biting | Dependency, smoking, overeating, oral habits |
| Anal | 1–3 years | Elimination and toilet training | Overly rigid or overly messy personality traits |
| Phallic | 3–6 years | Genitals, Oedipus/Electra conflicts | Identity issues, vanity, self-absorption |
| Latency | 6 years to puberty | Sexual energy quiets; social learning | Skill development, friendships |
| Genital | Puberty onward | Mature sexual and intimate relationships | Healthy adult sexuality and intimacy |
Freud’s theory is often taught as a sequence, but its deeper logic is about conflict resolution. The child experiences tension because instinctual drives and social demands are in conflict. If the conflict is resolved well, the child develops psychological balance. If not, fixation may occur, meaning that some personality patterns remain stuck at an earlier stage.
Strengths and limitations of Freud
Freud’s enduring value lies in several contributions. He highlighted the importance of early relationships, unconscious motives, and emotional development. He also insisted that childhood is psychologically meaningful rather than merely preparatory. However, his theory has major limitations:
- It is difficult to test empirically.
- It is highly gendered and culturally dated.
- It overemphasises sexuality as the core engine of development.
- It tends to interpret behaviour symbolically in ways that are not always scientifically defensible.
In exam answers, it is useful to note that Freud’s work is best treated as a historically important interpretive framework, not as a universally accepted scientific model.
Erikson: psychosocial development across the lifespan
Erik Erikson retained Freud’s interest in early experience but shifted the focus from psychosexual conflict to psychosocial crisis. His model is more useful for developmental psychology because it spans the entire lifespan and gives greater attention to social relationships, identity, and cultural expectations.
Erikson’s eight stages are:
| Stage | Approximate age | Crisis | Healthy outcome |
|---|---|---|---|
| Trust vs mistrust | 0–1 year | Can the infant rely on caregivers? | Hope |
| Autonomy vs shame and doubt | 1–3 years | Can the child act independently? | Will |
| Initiative vs guilt | 3–6 years | Can the child plan and initiate activities? | Purpose |
| Industry vs inferiority | 6–12 years | Can the child master school and skills? | Competence |
| Identity vs role confusion | Adolescence | Who am I? | Fidelity |
| Intimacy vs isolation | Young adulthood | Can the person form close relationships? | Love |
| Generativity vs stagnation | Middle adulthood | Can the adult contribute to others and society? | Care |
| Integrity vs despair | Late adulthood | Can the person accept life meaningfully? | Wisdom |
Erikson’s theory is especially valuable because it links development to social expectations at particular life periods. For example, adolescents are expected to explore identities, adults are expected to establish intimate commitments and work roles, and older adults reflect on life meaning. The “crisis” in each stage is not necessarily a disaster; it is a developmental challenge that can lead to growth.
Why Erikson matters in university psychology
Erikson remains a favourite in exam questions because he bridges child development, adolescent development, and adult development. His theory helps explain why development is not complete in childhood. It also allows students to discuss culture. Identity formation, for instance, may be shaped by family expectations, race, religion, language, class position, and institutional opportunity. In a South African context, identity development can be closely linked to historical inequality, multilingualism, migration, and changing family structures.
Critiques of Erikson
Erikson’s model is more flexible than Freud’s, but it still has weaknesses. The stage sequence may be too rigid, and the timing of crises can vary widely. Not everyone experiences adolescence in the same way, and not all cultures structure adulthood around the same milestones. Furthermore, the theory can be descriptive rather than explanatory: it identifies psychosocial tasks, but does not always explain how change occurs mechanistically.
Comparing Freud and Erikson
A useful exam strategy is to contrast the two theories directly:
- Freud emphasises instinct, unconscious conflict, and psychosexual energy.
- Erikson emphasises social relationships, identity, and lifespan development.
- Freud is mostly child-centred.
- Erikson extends development from infancy to old age.
- Freud is more biologically driven.
- Erikson gives more space to culture and social context.
If asked which is more useful in contemporary developmental psychology, Erikson is usually the stronger answer because he is broader and more adaptable. However, Freud remains important as a foundational theory that shaped later thinking about the emotional significance of early childhood.
3. Cognitive Development: Piaget, Vygotsky, and Information Processing
Cognitive development concerns changes in how people think, reason, remember, solve problems, and understand the world. PSY2006F typically treats Jean Piaget, Lev Vygotsky, and the information-processing approach as the three central cognitive frameworks. These theories differ sharply in their assumptions about the child’s role, the role of language, and the nature of developmental change.
Piaget: children as active constructors of knowledge
Piaget argued that children are not passive recipients of information. Instead, they actively construct knowledge through interaction with the environment. He believed that children’s thinking develops in stages, each representing a qualitatively different way of understanding reality.
The four classic stages are:
| Stage | Approximate age | Main characteristics |
|---|---|---|
| Sensorimotor | 0–2 years | Knowledge through sensory and motor activity; object permanence develops |
| Preoperational | 2–7 years | Symbolic thought, language growth, egocentrism, centration |
| Concrete operational | 7–11 years | Logical reasoning about concrete objects; conservation; decentration |
| Formal operational | 11 years and up | Abstract thought, hypothesis testing, systematic reasoning |
Key Piagetian concepts
Schema refers to a mental structure or framework used to organise knowledge. A baby’s schema for “grasping” changes as the infant learns to handle different objects. Assimilation is the process of fitting new information into existing schemas. Accommodation is the modification of schemas when new information cannot fit. Equilibration is the balance between assimilation and accommodation that drives development.
These concepts are essential because they show that development is not mere accumulation of facts. Instead, the child reorganises thinking. For example, a child who knows that a dog is a four-legged animal may initially call a cow a dog by assimilation. When corrected, the child accommodates by adjusting the schema of “dog” and “animal.”
Evaluating Piaget
Piaget’s theory has enormous value. It made children’s thinking visible as a subject of study, and it inspired educational practices that encourage active learning. His emphasis on discovery learning remains influential. However, contemporary research has challenged several aspects:
- Children may achieve some cognitive abilities earlier than Piaget proposed.
- Performance often depends on task design and language demands.
- Cognitive development may be more gradual and domain-specific than stage theory suggests.
- Cultural and educational differences can affect when and how skills emerge.
Despite these criticisms, Piaget remains indispensable because he provides a coherent account of qualitative cognitive change.
Vygotsky: cognition as socially mediated
Vygotsky offered a different picture. Where Piaget saw the child as an independent scientist, Vygotsky saw development as fundamentally social and cultural. According to Vygotsky, higher mental functions originate in social interaction and are later internalised by the child.
Three concepts are especially important:
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Zone of Proximal Development (ZPD)
This is the gap between what a child can do alone and what the child can do with guidance from a more knowledgeable other. The ZPD is where learning is most effective because support is matched to emerging ability. -
Scaffolding
This refers to the temporary support provided by an adult or more capable peer to help the child perform a task. As competence increases, the support is gradually withdrawn. Scaffolding may include hints, modelling, questioning, or breaking tasks into manageable steps. -
Private speech
Young children often talk to themselves while solving problems. Vygotsky interpreted this as an important self-regulatory tool. Over time, private speech becomes internal thought.
Vygotsky is particularly relevant to education because he explains how learning is embedded in teaching, language, and social interaction. A child learning to read may need guided reading, repeated feedback, and collaborative practice. A child learning to count may initially rely on adult prompts and shared activity before internalising the process.
Vygotsky in context
Vygotsky’s theory is often more culturally sensitive than Piaget’s because it recognises that tools of thought, including language, vary across communities. A child raised in a multilingual environment may develop different cognitive strategies from a child in a monolingual one. This matters in South African educational settings, where language choice, class size, and access to schooling can strongly shape developmental opportunities.
Information-processing theory: development as changes in processing capacity
Information-processing approaches are less concerned with stages and more concerned with how mental processes change over time. They compare the mind to a system that receives input, attends to it, stores it, transforms it, and retrieves it later. Development involves improvements in attention, memory, processing speed, strategy use, and executive control.
Important concepts include:
- Attention: the ability to focus on relevant information.
- Working memory: the temporary holding and manipulation of information.
- Long-term memory: relatively enduring storage.
- Processing speed: how quickly information is handled.
- Executive function: planning, inhibition, cognitive flexibility, and self-monitoring.
Unlike Piaget’s stage theory, information-processing models suggest that children become better thinkers because their cognitive systems become more efficient and because they learn better strategies. A child may improve in memory not because of a sudden stage shift but because of increased rehearsal, better chunking, and improved attentional control.
Strengths of the information-processing approach
- It is more compatible with experimental research.
- It explains gradual change well.
- It can account for developmental differences in attention and memory.
- It connects cognition with brain development and learning.
Limitations
- It can be fragmented, explaining specific processes without a unified picture of development.
- It may underplay the role of social and cultural context.
- It often describes how cognition works, but not why development is organised in broader developmental patterns.
Comparing Piaget, Vygotsky, and information-processing
| Theory | Main driver of development | Role of language | View of the child |
|---|---|---|---|
| Piaget | Self-discovery through interaction with environment | Important, but secondary to thought | Active constructor |
| Vygotsky | Social interaction and culture | Central tool of thought | Social learner |
| Information-processing | Growth in mental efficiency and strategy use | One component among others | Cognitive processor |
A strong exam response should avoid presenting these theories as mutually exclusive in every respect. They can complement one another. For example, Piaget helps explain broad patterns in reasoning, Vygotsky explains the social origins of learning, and information-processing explains the fine-grained mechanisms of change. Together they offer a richer picture of cognitive development than any one theory alone.
4. Behaviourism, Social Learning, and the Role of Environment
Behaviourist and social learning theories focus on how the environment shapes behaviour. They are especially useful for understanding observable learning, habit formation, and imitation. In PSY2006F, the main figures are Ivan Pavlov, John B. Watson, B. F. Skinner, and Albert Bandura. These thinkers differ, but they share an emphasis on learning from experience rather than from innate stage structures or unconscious conflicts.
Classical conditioning: learning by association
Classical conditioning was first demonstrated by Pavlov in studies with dogs. He showed that a neutral stimulus can become capable of eliciting a response if it is repeatedly paired with an unconditioned stimulus. In developmental terms, this means children can learn emotional and physiological responses through association.
Basic terms:
- Unconditioned stimulus (UCS): naturally triggers a response.
- Unconditioned response (UCR): natural response to UCS.
- Conditioned stimulus (CS): previously neutral stimulus that gains meaning.
- Conditioned response (CR): learned response to CS.
For example, if a child repeatedly hears shouting in association with conflict, the sound of raised voices may later produce fear even in a neutral setting. This kind of learning helps explain phobias, emotional reactions, and certain classroom behaviours.
Operant conditioning: learning by consequences
Skinner expanded behaviourism by showing that behaviour is shaped by its consequences. Behaviour followed by reinforcement becomes more likely; behaviour followed by punishment becomes less likely. Reinforcement can be positive (adding something desirable) or negative (removing something unpleasant). Punishment decreases behaviour but does not necessarily teach a better alternative.
This framework is useful in development because children constantly learn from consequences. A child who receives praise for tidying a room may repeat the behaviour. A teenager who experiences social approval for a particular style of dress may continue it. A learner who avoids homework because the task feels unpleasant may develop avoidance habits if avoidance temporarily reduces anxiety.
Why operant conditioning matters
The strength of operant conditioning is its practical applicability. It explains how routines, classroom management, habit formation, and parental discipline work. However, behaviourist approaches can be too narrow if they ignore thinking, meaning, and emotion. A child is not merely a bundle of responses; the child interprets experiences, anticipates outcomes, and learns from models.
Social learning theory: learning through observation
Bandura extended behaviourism by showing that people learn by observing others, not only by direct reinforcement. This is crucial in development because children spend much of their time watching adults, siblings, peers, and media figures.
Bandura’s theory includes several important concepts:
- Modelling: learning by observing someone else.
- Vicarious reinforcement: seeing another person rewarded can increase the observer’s behaviour.
- Self-efficacy: belief in one’s capacity to succeed in a task.
- Reciprocal determinism: behaviour, personal factors, and environment influence one another dynamically.
The famous Bobo doll research demonstrated that children may imitate aggressive behaviour after observing an adult model, especially when the model appears rewarded or not punished. The deeper lesson is that development is social and cognitive: children do not simply copy; they notice, encode, expect, and regulate their own actions based on observed outcomes.
Implications for child development
Behaviourism and social learning are especially important for understanding:
- aggression and prosocial behaviour,
- language habits,
- classroom performance,
- parenting practices,
- media influences,
- habit formation,
- anxiety acquisition and reduction.
For example, a child who receives repeated encouragement for reading may come to associate reading with competence and pleasure. Another child who is ridiculed for mistakes may associate classroom participation with shame and silence. A teenager observing peers gain social status through risk-taking may be more likely to imitate that behaviour, particularly if the risks appear to be rewarded socially.
Strengths and weaknesses
The strongest contribution of these theories is their emphasis on observable learning mechanisms and environmental influence. They are empirically useful and highly applicable in educational and clinical settings. Their main weakness is reductionism. Not all development is best understood as reinforcement histories or imitation. Children also reason, explore, internalise values, and reinterpret their experiences. Behaviourist ideas are best used alongside cognitive and contextual theories rather than as the sole explanation of development.
5. Attachment, Ecology, and Contemporary Integrative Perspectives
Some of the most important developmental theories for modern psychology focus on relationships and context. In this area, John Bowlby, Mary Ainsworth, and Urie Bronfenbrenner are central. These approaches are especially important because they link early caregiving, emotional security, and environmental systems to later development.
Attachment theory: the infant-caregiver bond
Attachment theory proposes that infants are biologically prepared to form close emotional bonds with caregivers. This bond has survival value because it keeps the infant close to protection and support. Bowlby argued that attachment is not just dependency; it is a behavioural system shaped by evolution. When the infant feels threatened, attachment behaviours such as crying, clinging, or seeking proximity are activated.
Ainsworth’s research helped classify patterns of attachment through the Strange Situation procedure. She identified common attachment styles:
| Attachment style | Typical caregiver pattern | Infant behaviour |
|---|---|---|
| Secure | Responsive, consistent care | Distress at separation, comforted on reunion |
| Insecure-avoidant | Emotionally distant or rejecting | Minimal outward distress, avoidance on reunion |
| Insecure-resistant/ambivalent | Inconsistent care | Intense distress, difficulty being soothed |
| Disorganised | Frightening, unpredictable, or chaotic care | Confused, contradictory behaviour |
Secure attachment is usually associated with better emotional regulation, social confidence, and exploration. It does not guarantee perfect outcomes, but it provides a strong base from which children can explore the world.
Why attachment matters developmentally
Attachment theory is not simply about infant affection. It has long-term implications for emotion regulation, peer relationships, and later intimacy. A child who has experienced reliable comfort may find it easier to trust others and manage stress. A child whose caregiving environment is inconsistent may become hypervigilant, avoidant, or disorganised in relationships.
That said, attachment is not destiny. Later supportive relationships, therapy, and stable institutions can improve developmental trajectories. This is important for exam answers because it prevents overly deterministic interpretations.
Bronfenbrenner: the ecological systems theory
Bronfenbrenner offered one of the most comprehensive ways of understanding development. His ecological systems theory argues that development is shaped by nested environmental systems, from the immediate family to broad cultural and historical conditions.
The major systems are:
-
Microsystem
Immediate settings in which the child participates directly, such as family, school, peers, and neighbourhood interactions. -
Mesosystem
The relationships between microsystems, such as the connection between home and school. -
Exosystem
Settings that affect the child indirectly, such as a parent’s workplace, local services, or media systems. -
Macrosystem
The broader cultural, economic, political, and ideological context, including values, laws, and social norms. -
Chronosystem
The dimension of time, including life transitions and historical change.
Bronfenbrenner’s model is powerful because it reminds students that development is embedded in real-world systems. A child’s school performance may be influenced not only by ability, but also by home stress, parental work schedules, transport access, school resources, and national policy. In a South African context, this ecological view is particularly relevant because inequalities in language, income, infrastructure, and historical opportunity deeply affect developmental outcomes.
Integrating these perspectives
Attachment theory and ecological theory fit together well. Attachment explains the emotional micro-process of early caregiving, while Bronfenbrenner explains how caregiving is embedded in broader structures. For example, a secure attachment relationship is easier to sustain when caregivers have access to housing stability, adequate healthcare, and manageable stress. In contrast, poverty, violence, and insecure employment can strain caregiving even when parents are committed and loving.
This integrated perspective is very useful for exam essays because it moves beyond individual blame. Instead of asking only whether a parent is “good” or “bad,” ecological thinking asks how systems support or constrain parenting and child development.
Contemporary developmental psychology: toward integration
Modern developmental psychology increasingly combines biological, psychological, and social explanations. This reflects the reality that no single classic theory can explain everything. Contemporary perspectives often draw on:
- neuroscience, to understand brain development and stress,
- genetics and epigenetics, to understand biological susceptibility and environmental effects,
- culture and identity research, to understand how norms and institutions shape development,
- developmental psychopathology, to study how risk and resilience interact over time.
These approaches do not replace the classic theories; rather, they refine them. For instance, attachment theory gains power when combined with neuroscience on stress regulation. Vygotsky becomes even more relevant when linked to educational access and language policy. Piaget remains useful when paired with research showing that task context and executive function influence performance. Erikson’s ideas remain influential when applied to identity in diverse cultural settings.
6. High-Yield Comparison, Evaluation, and Exam Use
A strong study guide needs to do more than describe theories separately. The real exam skill lies in comparison, evaluation, and application. A question may ask you to compare Piaget and Vygotsky, evaluate Freud, discuss attachment, or explain how ecological systems shape development. The best answers combine accurate definition with critical judgement.
A comparative master table
| Theory | Main focus | View of development | Key concepts | Common critique |
|---|---|---|---|---|
| Freud | Unconscious conflict, early childhood | Psychosexual stages | Id, ego, superego, fixation, defence mechanisms | Poor testability, cultural bias |
| Erikson | Social and identity development | Psychosocial stages across lifespan | Trust, identity, intimacy, generativity | Stage timing can be rigid |
| Piaget | Cognitive structures | Stage-based qualitative change | Schema, assimilation, accommodation, conservation | Underestimates children’s abilities |
| Vygotsky | Social learning and culture | Development through interaction | ZPD, scaffolding, private speech | Less precise on stage-like developmental change |
| Information-processing | Attention, memory, strategy use | Gradual improvement in cognitive efficiency | Working memory, executive function | Can be fragmented and context-light |
| Behaviourism | Observable learning | Behaviour shaped by consequences | Reinforcement, punishment, conditioning | Ignores internal thought |
| Social learning | Observation and modelling | Learning from others and self-efficacy | Modelling, vicarious reinforcement, self-efficacy | Still may underplay deep cognitive change |
| Attachment theory | Early emotional bond | Caregiver relationships shape security | Secure/insecure attachment, Strange Situation | Later change can be underestimated |
| Bronfenbrenner | Context and systems | Development embedded in nested environments | Microsystem, exosystem, macrosystem | Broad framework, less specific mechanism |
How to evaluate theories in an exam
A rigorous evaluation usually considers five dimensions:
-
Explanatory power
What does the theory explain well?
Piaget explains broad changes in reasoning. Attachment theory explains emotional security. Bronfenbrenner explains contextual influence. -
Empirical support
Is there evidence for the theory?
Bandura and attachment research have strong evidence bases. Freud has weaker empirical support. -
Scope
Does the theory explain only one domain or many?
Erikson and Bronfenbrenner are broad. Classical conditioning is narrower but precise. -
Cultural relevance
Does the theory travel well across cultures and settings?
Vygotsky and Bronfenbrenner tend to be more context-sensitive than highly individualistic models. -
Practical usefulness
Can the theory inform education, parenting, or intervention?
Behaviourism, attachment theory, and Vygotsky are especially practical.
Example of a strong comparative paragraph
If asked to compare Piaget and Vygotsky, a strong response might say:
Piaget and Vygotsky both view children as active participants in development, but they differ on the source of cognitive growth. Piaget argued that children construct knowledge individually through interaction with the environment, progressing through universal stages such as the preoperational and concrete operational periods. Vygotsky, in contrast, argued that higher mental functions emerge through social interaction and are internalised through language and guidance within the zone of proximal development. Piaget emphasises discovery and maturation of cognitive structures, whereas Vygotsky emphasises scaffolding, cultural tools, and the role of more knowledgeable others. In educational contexts, Piaget supports child-centred exploration, while Vygotsky supports guided learning and collaborative teaching.
That paragraph works because it defines both theories, compares them directly, and connects them to an application.
Common comparison themes
These themes appear repeatedly in developmental psychology essays:
-
Nature vs nurture
Although this is an oversimplification, it remains a useful shorthand. Freud and Piaget lean more toward universal internal structures; Vygotsky and Bronfenbrenner give more weight to social and cultural influences; behaviourism emphasises experience. -
Continuity vs discontinuity
Information-processing theory supports continuity; Piaget and Erikson are more stage-like; behaviourism often implies continuous accumulation of learning. -
Child as active vs passive
Piaget and Vygotsky both treat the child as active, but in different ways. Behaviourism tends to be more externally driven. Attachment theory emphasises bidirectional caregiving relationships. -
Universal vs context-specific development
Freud, Piaget, and Erikson sought broad universals. Bronfenbrenner and Vygotsky are more context-aware.
Final exam strategy
When answering a PSY2006F question, prioritise precision over name-dropping. State the theory’s central claim, define its technical terms, and then use one carefully chosen example. If there is time, add evaluation that is specific rather than generic. For instance, instead of saying “this theory has limitations,” specify that Piaget’s tasks may underestimate children’s abilities because of language demands, memory load, or unfamiliar testing conditions.
A good conclusion in an essay often returns to the bigger picture: developmental psychology is strongest when multiple theories are held in productive tension. Psychoanalytic ideas remind us that early relationships matter; cognitive theories explain how thinking changes; behaviourism and social learning explain observable learning; attachment and ecological theories show that development is relational and contextual. Together, these theories create a richer and more realistic understanding of human development across the lifespan.
