Psychosexual stages | AQA A-Level Psychology Revision

For 7182 specification, first teach in September 2025

AQA A-Level Psychology | Free Revision Notes

Estimated study time: 45 minutes

These Psychosexual stages A-Level Psychology revision notes examine the psychodynamic claim that experiences during early development may influence later behaviour. You will connect the stages with unconscious influences and personality conflict, before evaluating the psychodynamic approach using scientific principles, psychic determinism and reductionism. This topic is important because it shows how one psychological approach uses early experience to explain behaviour that appears much later in life.

Learning Objectives 🎯

By the end of this revision page, you should be able to:

• Describe the general role of psychosexual stages within the psychodynamic approach.

• Explain how early experiences may influence later behaviour.

• Explain how unconscious processes connect early experience with adult behaviour.

• Apply a psychodynamic explanation to an unfamiliar situation.

• Evaluate the scientific status of the psychodynamic approach.

• Evaluate psychic determinism and reductionism as features of psychodynamic explanations.

Revision Notes 📚

Psychosexual stages A-Level Psychology revision overview

The psychodynamic approach proposes that early experiences can have lasting effects on later behaviour.

The concept of psychosexual stages provides a developmental element within the approach. Development is viewed as progressing through a sequence of stages, with experiences during these stages contributing to later personality and behaviour.

This idea connects with the wider assumptions that:

• Behaviour may be influenced by the unconscious.

• Personality involves the Id, Ego and Superego.

• Psychological conflict can affect behaviour.

• The Ego may use defence mechanisms.

• Early experiences can continue to influence behaviour after the original events have passed.

The AQA specification names psychosexual stages as required content. However, it does not identify the individual stages, give age ranges or describe stage-specific experiences and outcomes.

The provided source material does not contain enough information to complete this section accurately.

Therefore, this page explains only the specification-supported principle that early developmental experiences are used within the psychodynamic approach to account for later behaviour. It does not add unsupported names, ages or stage-specific details.

The developmental assumption

The psychodynamic approach is developmental because it proposes that experiences earlier in life can influence behaviour later.

This means current behaviour may not be explained only by:

• The person’s present circumstances.

• Their conscious intentions.

• Immediate rewards or consequences.

• Their current interpretation of an event.

Instead, behaviour may partly reflect experiences and conflicts originating during early development.

The relationship can be summarised as:

Early experience → unconscious psychological influence → later behaviour

This is not a mathematical formula. It represents the psychodynamic explanation of how events from earlier development may continue to affect behaviour.

Early experiences and later behaviour

According to the psychodynamic approach, early experiences can contribute to the development of personality.

These experiences may influence:

• How a person responds emotionally.

• How the person manages conflict.

• Their relationships with other people.

• Their behavioural reactions.

• The defence mechanisms they use.

The individual may not be consciously aware of the connection between the early experience and the later behaviour.

For example, a person may repeatedly respond to a particular type of situation with strong anxiety or anger but be unable to explain why. A psychodynamic psychologist may suggest that an unconscious influence originating in early development contributes to the response.

This is an inferred explanation. The psychologist cannot directly observe the early experience operating in the person’s unconscious mind.

The role of the unconscious

The unconscious contains thoughts, wishes, memories and impulses outside conscious awareness.

Early experiences are used to explain later behaviour because their psychological effects may continue unconsciously.

The person may:

• Have no conscious memory of the relevant experience.

• Remember the experience but not recognise its later influence.

• Misunderstand the real reason for their behaviour.

• Experience feelings without consciously knowing their source.

The psychodynamic approach therefore proposes that conscious explanations of behaviour may be incomplete.

A person might provide one reason for their behaviour, while unconscious processes contribute additional influences.

Linking early experience to the Id, Ego and Superego

The Id, Ego and Superego are theoretical parts of personality.

Part of personality	Role
Id	Seeks immediate satisfaction of wishes and impulses
Ego	Balances the Id, Superego and external reality
Superego	Represents moral standards and judges behaviour

Early development is important because the psychodynamic approach uses it to explain how personality and psychological conflict develop.

Later behaviour may reflect continuing conflict between:

• The wishes of the Id.

• The moral demands of the Superego.

• The practical demands of external reality.

• The Ego’s attempt to manage these competing pressures.

The relevant parts of personality are reviewed in the unconscious, Id, Ego and Superego.

Early conflict and later behaviour

The psychodynamic approach proposes that psychological conflict can have continuing effects.

For example:

1. An individual experiences an important conflict during early development.

2. The psychological effects of the experience continue outside conscious awareness.

3. A later situation activates similar feelings or pressures.

4. The individual responds without fully understanding the source of the reaction.

This explanation treats current behaviour as having a psychological history.

The immediate situation may trigger the behaviour, but the psychodynamic approach proposes that its deeper cause may be connected with earlier development.

Defence mechanisms and early experience

The Ego may use defence mechanisms to protect the individual from psychologically threatening thoughts, memories or conflicts.

The three defence mechanisms named in the approach are:

• Repression

• Denial

• Displacement

Early experiences may be connected with later behaviour through one of these mechanisms.

Repression

Repression involves pushing a threatening thought, wish or memory out of conscious awareness.

An early experience may therefore be unavailable to conscious recall while continuing to affect later emotions or behaviour.

This does not mean that every forgotten childhood event has been repressed. Forgetting can have many explanations.

A psychodynamic explanation requires the psychologist to infer that psychologically threatening material has been excluded from conscious awareness.

Denial

Denial involves refusing to accept an unpleasant or threatening reality.

A person may use denial when accepting a situation would create considerable psychological discomfort.

Early patterns of managing difficult experiences may continue to influence how the person responds to threatening information later.

Displacement

Displacement involves redirecting an emotion or impulse from its original target towards a safer substitute.

For example, conflict connected with one person may contribute to anger being directed at somebody else.

In each case, the defence mechanism protects the individual from experiencing the psychological conflict directly.

Applying the psychodynamic explanation

Consider the following scenario:

Nadia becomes extremely anxious whenever a close friend disagrees with her. She recognises that the disagreement is minor but cannot explain why her emotional response is so strong. A psychodynamic psychologist suggests that experiences from Nadia’s early development continue to influence her reactions.

A psychodynamic explanation could state that:

• Nadia’s present response may be influenced by an earlier experience.

• The psychological effect of that experience may operate unconsciously.

• The present disagreement may activate feelings connected with the earlier experience.

• Nadia may therefore respond more strongly than the current situation appears to justify.

• She may not be consciously aware of the real source of the anxiety.

The explanation does not establish exactly what happened during Nadia’s development. It shows how the psychodynamic approach would connect early experience with later behaviour.

A method for answering application questions

Use the following structure.

1. Identify the later behaviour

State the response that needs to be explained.

2. Identify the possible early influence

Refer to the early experience given in the scenario.

Do not invent a childhood event that the question does not provide.

3. Explain the unconscious connection

State that the person may not be consciously aware of how the experience influences their current behaviour.

4. Link the experience to the present response

Explain how the later situation may activate feelings or conflicts connected with the earlier experience.

5. Apply specialist terminology

Use terms such as:

• Unconscious

• Early experience

• Psychological conflict

• Ego

• Defence mechanism

⚠️ Avoid claiming that an imagined early experience definitely caused the behaviour. Use only the information supplied in the scenario.

Psychosexual stages and psychic determinism

The psychodynamic approach is associated with psychic determinism.

Psychic determinism is the view that behaviour is caused by psychological processes, including unconscious wishes, conflicts and earlier experiences.

From this perspective, behaviour does not occur without a psychological cause.

A person may believe that they freely chose a response, while the psychodynamic approach proposes that the choice was influenced by unconscious processes.

This can be seen as a strength because it encourages psychologists to look beyond surface behaviour and search for underlying explanations.

However, it can also be criticised because it may underestimate:

• Conscious decision-making.

• Personal responsibility.

• The ability to change previous patterns.

• The influence of the current situation.

This debate is developed further in psychic determinism and conscious choice.

Strength: recognition of unconscious influences

One contribution of the psychodynamic approach is its recognition that behaviour may have causes outside conscious awareness.

People are not always able to explain accurately:

• Why they feel a particular emotion.

• Why they repeat a behavioural pattern.

• Why they respond strongly to a minor event.

• Why certain situations are psychologically threatening.

The approach therefore offers an explanation for behaviour that cannot be understood entirely through a person’s conscious account.

This provides greater psychological depth than an explanation based only on directly observable behaviour.

However, the fact that people sometimes misunderstand their behaviour does not prove that a particular unconscious conflict caused it.

Strength: recognition of developmental influences

The psychodynamic approach highlights the possible importance of early development.

This is useful because behaviour develops over time rather than appearing suddenly in adulthood.

Current behaviour may be influenced by:

• Earlier relationships.

• Previous emotional experiences.

• Established ways of managing conflict.

• Patterns of responding that developed earlier.

The approach therefore encourages psychologists to examine a person’s developmental history.

However, identifying an earlier experience does not automatically show that it caused the later behaviour. Other experiences and present circumstances may also contribute.

Strength: an integrated explanation of personality

The psychodynamic approach connects several ideas within one explanation:

• Early experiences.

• The unconscious.

• The Id, Ego and Superego.

• Psychological conflict.

• Defence mechanisms.

• Later behaviour.

For example, an early experience may contribute to an unconscious conflict. The Ego may then use a defence mechanism, influencing how the individual responds later.

This gives the approach a coherent account of how different psychological processes may interact.

However, the explanation depends on theoretical processes that cannot be directly observed.

Limitation: unconscious processes cannot be observed directly

A major limitation is that the unconscious cannot be directly observed.

A researcher can observe:

• A person’s behaviour.

• Their emotional response.

• What they report.

• The context in which the response occurs.

The researcher cannot directly observe:

• An unconscious conflict.

• The Id making a demand.

• The Superego judging the demand.

• Repression removing a memory from awareness.

These processes must be inferred.

This makes it difficult to know whether a psychodynamic explanation is correct or whether another explanation accounts for the same behaviour.

For example, a strong reaction could result from:

• An unconscious early conflict.

• Current stress.

• A learned response.

• A conscious interpretation.

• A biological influence.

The behaviour alone may not show which explanation is correct.

Limitation: difficulties with objectivity

Objectivity means that evidence and conclusions are not based on personal opinion.

Psychodynamic explanations can be difficult to investigate objectively because researchers may interpret the same behaviour differently.

For example, one psychologist may interpret anger towards a safe target as displacement. Another may explain it using learning or the person’s current circumstances.

If concepts are not operationalised clearly, conclusions may depend heavily on the psychologist’s interpretation.

This can reduce confidence that different researchers would reach the same conclusion.

The scientific importance of objectivity is explored in objectivity, replicability and falsifiability.

Limitation: difficulties with empirical testing

The empirical method involves developing knowledge through observation and measurement.

Psychodynamic explanations involve processes that cannot be observed directly, which makes some claims difficult to test using objective measurements.

Researchers may struggle to operationalise concepts such as:

• Unconscious conflict.

• The demands of the Id.

• The strength of the Superego.

• The psychological influence of a psychosexual stage.

If a concept cannot be measured precisely, it becomes harder to investigate using controlled and replicable research.

This limits the extent to which the approach meets the scientific emphasis on observable evidence.

Limitation: falsifiability

Falsifiability means that it must be possible for evidence to show that an explanation is incorrect.

Some psychodynamic explanations may be difficult to falsify because different behaviours can be interpreted as evidence of an unconscious process.

For example:

• Expressing anger might be interpreted as evidence of conflict.

• Not expressing anger might be interpreted as repression.

• Directing anger elsewhere might be interpreted as displacement.

If every possible response can be explained after it occurs, it becomes difficult to identify evidence that would contradict the explanation.

This limits the scientific status of the approach because a useful scientific explanation should make predictions that could potentially be shown to be wrong.

Limitation: retrospective explanations

The psychodynamic approach often explains present behaviour by referring to earlier experiences.

This creates a difficulty because researchers may begin with the current behaviour and then search backwards for a possible developmental explanation.

A connection between an early event and later behaviour does not necessarily establish that the event caused the behaviour.

Possible problems include:

• Important early experiences may not be remembered accurately.

• Current beliefs may influence accounts of the past.

• Several early experiences may be relevant.

• Later experiences may also have shaped behaviour.

• The explanation may be constructed after the behaviour has already occurred.

This can make cause-and-effect conclusions difficult.

Limitation: psychic determinism

Psychic determinism may provide causal explanations, but it can underestimate human agency.

If later behaviour is explained mainly through unconscious early experiences, the person may appear to have limited ability to:

• Choose differently.

• Reflect on their behaviour.

• Resist unconscious influences.

• Change established patterns.

A less deterministic explanation might recognise that early experiences influence behaviour without completely controlling it.

This would allow both psychological causes and conscious choice to contribute.

Limitation: reductionism

The psychodynamic approach may be criticised as reductionist when complex behaviour is explained mainly through unconscious conflict and early experience.

For example, an adult relationship difficulty might also involve:

• Current communication.

• Conscious beliefs.

• Social pressures.

• Cultural expectations.

• Learning.

• Biological factors.

Explaining the difficulty only through early developmental experience may leave out these influences.

However, reducing behaviour to underlying psychological processes can make the explanation clearer and more focused.

The question is whether the approach simplifies behaviour so much that important causes are ignored.

This issue is examined through reductionist and holistic explanations.

Comparing psychodynamic and behaviourist explanations

The psychodynamic and behaviourist approaches both recognise the importance of experience, but they explain its influence differently.

Psychodynamic approach	Behaviourist approach
Emphasises early psychological experiences	Emphasises learning throughout interaction with the environment
Explains behaviour through unconscious conflict	Explains behaviour through conditioning
Uses inferred personality processes	Focuses on observable responses
Associated with psychic determinism	Associated with environmental determinism
Gives an important role to defence mechanisms	Gives an important role to reinforcement and association

The psychodynamic approach searches for hidden psychological meaning, whereas the behaviourist approach searches for learning experiences that can be investigated through observable behaviour.

Comparing psychodynamic and cognitive explanations

Both approaches investigate processes that cannot be observed directly.

Psychodynamic approach	Cognitive approach
Studies unconscious wishes and conflicts	Studies internal information processing
Uses the Id, Ego and Superego	Uses schemas and models
Emphasises early developmental experience	Emphasises how information is processed
May be difficult to test objectively	Often uses controlled tasks and measurable behaviour
Makes inferences about unconscious causes	Makes inferences about cognitive processes

The cognitive approach may be considered more scientific because its models can generate predictions tested through observable performance.

However, both approaches accept that visible behaviour alone may not provide a complete explanation.

Their wider similarities and differences are explored in evaluating psychological perspectives together.

Overall evaluation of the psychodynamic approach

The psychodynamic approach makes an important contribution by proposing that:

• Early experiences can influence later behaviour.

• People may not be conscious of all the causes of their actions.

• Personality involves competing psychological demands.

• Defence mechanisms can shape behavioural responses.

Its main strengths include:

• Recognising unconscious influences.

• Emphasising development over time.

• Connecting early experience, personality and later behaviour.

• Providing explanations for reactions people cannot consciously understand.

Its main limitations include:

• Unconscious processes cannot be observed directly.

• Explanations depend heavily on inference.

• Concepts may be difficult to operationalise.

• Some claims may be difficult to falsify.

• Early experiences do not necessarily establish causation.

• The approach may be deterministic and reductionist.

A balanced conclusion is that the psychodynamic approach offers a detailed account of how early experience may affect later behaviour, but many of its central processes are difficult to investigate using objective, empirical and falsifiable methods.

Writing an effective evaluation paragraph

A developed paragraph should explain why an evaluation point matters.

For example:

One limitation of the psychodynamic approach is that its central concepts are difficult to test empirically. Processes such as unconscious conflict and repression cannot be observed directly, so psychologists must infer them from behaviour. Different researchers might interpret the same behaviour in different ways, reducing objectivity. This makes it difficult to test whether early psychosexual experiences genuinely caused the later behaviour.

This paragraph:

1. Identifies the limitation.

2. Explains why the problem occurs.

3. Links it to scientific investigation.

4. Shows how it affects conclusions about behaviour.

⚠️ Avoid stating only that the theory is “unscientific”. Explain whether the problem concerns objectivity, operationalisation, empirical testing, replicability or falsifiability.

Key Words 🔑

Key word	Student-friendly definition	How it may be used in an exam
Psychosexual stages	A sequence of developmental stages used by the psychodynamic approach to explain how early experiences may influence later behaviour.	Describe the developmental assumption of the approach.
Psychodynamic approach	An approach explaining behaviour through unconscious processes, personality conflict and early experience.	Introduce the explanation or evaluation.
Early experience	An event or relationship from earlier development that may have a lasting psychological influence.	Explain how later behaviour may have developmental causes.
Later behaviour	Behaviour occurring after the original developmental experience.	Link early development with present responses.
Unconscious	Thoughts, wishes, memories and impulses outside conscious awareness.	Explain why a person may not understand the cause of their behaviour.
Id	The part of personality seeking immediate satisfaction.	Explain the source of unconscious wishes or impulses.
Ego	The part of personality balancing the Id, Superego and external reality.	Explain how psychological conflict is managed.
Superego	The part of personality representing moral standards.	Explain the source of moral conflict.
Defence mechanism	An unconscious strategy used by the Ego to manage psychological threats or conflict.	Connect unconscious conflict with later behaviour.
Repression	Pushing a threatening thought, wish or memory outside conscious awareness.	Explain how an early experience might remain unconscious.
Denial	Refusing to accept a threatening aspect of reality.	Explain one way psychological discomfort may be managed.
Displacement	Redirecting an emotion or impulse towards a safer substitute target.	Apply the psychodynamic approach to redirected behaviour.
Psychic determinism	The view that behaviour is caused by psychological processes, including unconscious influences.	Evaluate the role given to free choice.
Reductionism	Explaining complex behaviour by breaking it into simpler processes.	Evaluate the focus on early experience and unconscious conflict.
Objectivity	Reaching conclusions without relying on personal opinions.	Evaluate how psychodynamic concepts are interpreted.
Empirical method	Developing knowledge through direct observation and measurement.	Evaluate the scientific status of the approach.
Falsifiability	The principle that evidence must be capable of showing an explanation is wrong.	Explain why some psychodynamic claims are difficult to test.
Inference	A conclusion about an unobservable process based on evidence.	Explain how unconscious influences are investigated.

Hints from the Examiner Reports 💡

No lesson-specific examiner guidance was identified in the provided reports.

Common Mistakes ⚠️

Mistake: Adding names, ages or features of psychosexual stages that are not contained in

the provided specification source.

Why this is incorrect:The provided specification names psychosexual stages but does not give those details.

How to improve:Restrict answers based on this source to the role of developmental stages and how early experience may influence later behaviour.

Mistake: Saying early experiences consciously control every later behaviour.

Why this is incorrect:The psychodynamic approach emphasises unconscious influences rather than continuous conscious awareness of the early experience.

How to improve:Explain that the person may be unaware of the connection between early experience and later behaviour.

Mistake: Claiming that an early experience definitely caused a later response.

Why this is incorrect:A relationship between early and later events does not automatically establish causation.

How to improve:Use cautious language such as “may influence”, “may contribute to” or “could be interpreted as”.

Mistake: Describing psychosexual stages without linking them to later behaviour.

Why this is incorrect:The purpose of the stages within the approach is to explain how early developmental experiences can have later consequences.

How to improve:Always complete the chain from early experience to unconscious influence and later behaviour.

Mistake: Treating the unconscious as something the person is currently thinking about.

Why this is incorrect:Unconscious material is outside current conscious awareness.

How to improve:State that the person may not know the real psychological cause of their response.

Mistake: Saying that difficult-to-observe concepts are automatically false.

Why this is incorrect:Difficulty observing a process directly does not prove it does not exist.

How to improve:Explain that indirect evidence makes claims harder to test objectively and compare with alternatives.

Mistake: Calling the approach unscientific without development.

Why this is incorrect:The term does not identify the exact scientific problem.

How to improve:Refer to operationalisation, objectivity, empirical testing, replicability or falsifiability.

Mistake: Describing psychic determinism as environmental determinism.

Why this is incorrect:Psychic determinism explains behaviour through psychological processes, including unconscious conflict. Environmental determinism explains behaviour through external learning experiences.

How to improve:Identify the type of cause proposed by the approach.

Mistake: Treating reductionism as entirely negative.

Why this is incorrect:Simplifying behaviour can make an explanation clearer, although it may exclude important influences.

How to improve:Balance the clarity of a focused explanation against the danger of oversimplification.

Mistake: Evaluating only the psychosexual stages when asked about the psychodynamic approach.

Why this is incorrect:The wider approach also includes the unconscious, personality structure and defence mechanisms.

How to improve:Use the stages as one part of a broader evaluation of the approach.

Exam-Style Questions ✍️

Question 1

Which one of the following best describes the role of psychosexual stages within the psychodynamic approach?

A. They explain how reinforcement increases behaviour.B. They explain how early developmental experiences may influence later behaviour.C. They identify biological structures involved in behaviour.D. They describe how people learn by observing models.

[1 mark]

Question 2

Define the term psychic determinism.

[2 marks]

Question 3

Explain how the psychodynamic approach uses early experiences to account for later behaviour.

[4 marks]

Question 4

Explain why a person might be unaware of the connection between an early experience and their present behaviour.

[3 marks]

Question 5

Marcus responds with intense anxiety whenever someone criticises his work. He recognises that the criticism is minor but cannot explain why his reaction is so strong. A psychologist suggests that experiences during Marcus’s early development continue to affect him.

Using the psychodynamic approach, explain Marcus’s behaviour.

[4 marks]

Question 6

Explain one difficulty psychologists face when testing claims about psychosexual stages scientifically.

[4 marks]

Question 7

A psychologist claims:

Any adult behaviour can be explained by identifying an unconscious conflict from early development.

Explain one problem with this claim.

[4 marks]

Question 8

Explain one strength and one limitation of using early experiences to account for later behaviour.

[6 marks]

Question 9

Evaluate the psychodynamic approach.

Refer to early experiences, unconscious processes and scientific investigation in your answer.

[8 marks]

Question 10

Discuss the psychodynamic approach in psychology.

Refer to psychosexual stages, the unconscious, personality and defence mechanisms in your answer.

[16 marks]