Introduction: Why Are Some AQA Psychology Questions So Difficult?
Psychology can appear straightforward when you are learning definitions, theories and research studies. However, the real challenge begins when you have to apply psychological knowledge to an unfamiliar situation, evaluate research evidence or construct a detailed essay under exam conditions.
For students studying AQA AS Psychology (7181) and A Level Psychology (7182), success depends on more than memorising textbooks. You must understand what a question is asking, select the relevant psychological concepts, use research evidence accurately and explain how that evidence supports or challenges an argument.
For example, knowing that conformity involves changing behaviour to match a group is not enough to answer every question about social influence. You must distinguish internalisation from compliance, recognise normative social influence in a scenario and evaluate explanations for resistance to social pressure.
Similarly, an essay about memory may require you to describe a theory, support it with research and explain why the findings strengthen or weaken that theory.
This guide explores 30 challenging AQA Psychology questions, covering 15 AS-level questions and 15 A-level questions. Each section focuses on the essential knowledge, useful research evidence and common mistakes that can prevent students from reaching higher marks.
Important: These are practice questions and model-answer guidance based on the supplied study material, not a prediction of the questions that will appear on a future AQA examination.
Understanding AO1, AO2 and AO3 in AQA Psychology
Before attempting difficult questions, understand the three assessment objectives used throughout AQA Psychology.
| Assessment objective | What it means | How to demonstrate it |
|---|---|---|
| AO1: Knowledge | Demonstrate knowledge and understanding of psychological concepts, theories and studies. | Define concepts, describe procedures and explain theories accurately. |
| AO2: Application | Apply psychological knowledge to a particular situation or problem. | Connect theory directly to the details in a scenario. |
| AO3: Evaluation | Analyse, interpret and evaluate psychological concepts, theories and research. | Explain strengths, limitations, evidence and implications. |
A common reason students lose marks is that they answer the wrong assessment objective. A question asking you to outline a theory does not necessarily require evaluation. Conversely, a question asking you to discuss a theory requires more than a descriptive account.
For extended responses, use the mark allocation as a guide to how much knowledge and evaluation to include. Always follow the exact question wording and the requirements of the relevant assessment.
Section 1: The Hardest AS Psychology Questions (7181)
The AS-level section covers social influence, memory, attachment, approaches, psychopathology and research methods.
Question type: Explain the difference between internalisation and compliance.
Internalisation and compliance are two types of conformity, but the difference lies in whether a person’s private beliefs change.
Internalisation occurs when an individual genuinely accepts the group’s viewpoint. Their private beliefs and public behaviour change, and the change may continue even when the group is absent.
Compliance occurs when an individual changes their public behaviour to gain approval or avoid rejection while privately disagreeing with the group. The change is generally temporary.
Example: A student who genuinely changes their opinion after listening to classmates demonstrates internalisation. A student who agrees publicly to avoid embarrassment but privately disagrees demonstrates compliance.
Exam tip: Make the public–private distinction explicit. Simply naming both types of conformity without explaining how they differ may not secure full marks.
Imagine Priya has just started a new job. During a team meeting, everyone agrees that a deadline is reasonable, although Priya privately believes it is unrealistic. She remains silent and nods in agreement.
Normative social influence (NSI) explains conformity through the desire to be liked, accepted and included by others.
Priya may want to make a positive impression on her new colleagues. Because she is unfamiliar with the group, she may be particularly concerned about rejection. Her public agreement, despite her private disagreement, illustrates compliance.
Group unanimity may increase the pressure to conform. Asch’s line-judgement research demonstrated the influence of a unanimous majority on participants’ responses.
How to earn application marks:
- Identify normative social influence.
- Explain the need for social approval.
- Link the explanation to Priya’s new job.
- Refer to her public agreement and private disagreement.
The key is to apply psychological knowledge to the actual scenario rather than reproduce a generic definition.
Two important explanations for resisting social pressure are social support and locus of control.
People may find it easier to resist a majority or authority figure when another person demonstrates disagreement or disobedience.
A dissenting individual breaks group unanimity and provides a model for resistance. Asch’s variations showed that the presence of a dissenter could reduce conformity. In Milgram’s variations, obedience fell to approximately 10% when participants were accompanied by two disobedient confederates.
Locus of control
Rotter’s concept of locus of control concerns the extent to which individuals believe they control events in their lives.
- Internal locus of control: Individuals tend to attribute outcomes to their own decisions and actions.
- External locus of control: Individuals tend to attribute outcomes to luck, fate or powerful external forces.
An internal locus of control may encourage resistance because individuals feel responsible for their own decisions.
Evaluation
Research by Allen and Levine found that conformity could decrease even when the dissenting individual lacked apparent credibility, suggesting that breaking unanimity may be important.
However, the relationship between locus of control and resistance is not straightforward. Twenge and colleagues reported changes in resistance to obedience alongside changes in locus of control over time that challenge a simple explanation based on internality.
Exam tip: Describe each explanation and then evaluate it using relevant evidence. Finish by considering whether personality and situational factors may work together.
4. Memory: What Is Coding?
Coding refers to the form in which information is represented in a memory store.
Three important properties of memory must be distinguished:
- Coding: The form in which information is stored.
- Capacity: The amount of information that can be stored.
- Duration: How long information remains available.
Short-term memory tends to code information acoustically, based on sound, whereas long-term memory tends to code information semantically, based on meaning. Baddeley’s research using word lists provides evidence relevant to these differences.
Example: Remembering a telephone number by repeating its sounds involves acoustic coding. Remembering the meaning of a sentence involves semantic coding.
Exam tip: If asked about coding, explain the format of the stored information rather than how much information can be held or how long it lasts.
5. The Working Memory Model
Baddeley’s working memory model explains short-term memory as an active system with different components that process different types of information.
The four main components are:
Central executive: Directs attention and allocates resources to the other components. It has limited capacity and does not function as a simple storage unit.
Phonological loop: Processes and temporarily holds speech-based and auditory information. It includes the phonological store and articulatory rehearsal process.
Visuo-spatial sketchpad: Temporarily processes visual and spatial information, such as the appearance of an object or the route to a destination.
Episodic buffer: Added by Baddeley in 2000, this component integrates information from different sources, including the other working-memory components and long-term memory, into coherent episodes.
Example: While following spoken directions, you may use the phonological loop to retain the instructions and the visuo-spatial sketchpad to picture the route.
Exam tip: For a short AO1 question, give an accurate explanation of each component. Do not spend valuable time evaluating the model unless the question asks you to do so.
6. Eyewitness Testimony: Leading Questions
A leading question is phrased in a way that suggests a particular answer or introduces information that may influence a witness’s response.
Loftus and Palmer (1974) investigated this issue by showing participants films of car accidents and asking them questions using different verbs.
The estimated speeds differed according to the wording. The supplied material reports average estimates of approximately 31.8 mph for “contacted” and 40.8 mph for “smashed”.
These findings suggest that the language used in a question can influence eyewitness reports.
Evaluation
One strength is the practical application of this research. It supports the use of careful, non-leading questions during police interviews.
A limitation is that watching a film may not reproduce the emotional intensity of witnessing a real accident. Foster and colleagues’ research, discussed in the supplied material, offers a useful comparison involving participants who believed they were observing a genuine robbery.
Exam tip: Include a named study, the relevant procedure, a specific finding and an explanation of what the finding means. A study name alone is rarely enough for a strong answer.
7. The Multi-Store Model of Memory
Atkinson and Shiffrin (1968) proposed that memory consists of three separate stores:
- Sensory register
- Short-term memory (STM)
- Long-term memory (LTM)
Information passes through these stores in a sequence, with attention helping information move from sensory memory into STM.
The three stores
Sensory register: Briefly retains incoming sensory information. Only attended information is likely to proceed to the next stage.
Short-term memory: Has limited capacity and duration. The supplied material associates its capacity with Jacobs’ digit-span research and its duration with Peterson and Peterson’s research. STM is described as coding mainly acoustically.
Long-term memory: Has a potentially very large capacity and duration and tends to code information semantically.
The model proposes that maintenance rehearsal helps transfer information from STM to LTM.
Evaluation
Research involving patient HM supports the distinction between short-term functioning and the ability to form new long-term episodic memories.
However, the model treats STM as a single store. Patient KF’s pattern of impaired verbal short-term memory alongside relatively preserved visual short-term memory challenges this assumption.
The model may also oversimplify the role of rehearsal. Craik and Lockhart’s levels-of-processing approach suggests that the depth of processing is important for long-term retention.
Exam tip: Evaluate what the evidence reveals about the model itself, not just whether an individual study used a representative sample.
8. Attachment: Identifying Secure Attachment
Ainsworth’s Strange Situation assesses infant attachment through observations of exploration, separation, responses to a stranger and reunion with the caregiver.
Consider an infant who explores confidently while the mother is present, becomes moderately distressed when she leaves and is easily comforted when she returns.
This behaviour is consistent with secure attachment.
The infant uses the caregiver as a secure base for exploration and responds positively to reunion.
By contrast, an insecure-avoidant infant may show limited distress and avoid the caregiver on reunion, while an insecure-resistant infant may show intense distress and both seek and resist comfort.
Exam tip: State the attachment type and justify it using specific behaviours from the scenario. Identification without application may earn only partial credit.
9. Cultural Variations in Attachment
Van IJzendoorn and Kroonenberg (1988) conducted a meta-analysis of 32 studies across eight countries, involving approximately 1,990 children.
Their findings indicated that secure attachment was the most common classification across the countries studied, although differences in the distribution of insecure attachment types were also reported.
Evaluation
A major strength of a meta-analysis is that it combines findings from multiple studies, providing a broader evidence base than an individual study.
However, variation within countries was reported to be greater than variation between countries, challenging the idea that nationality alone determines attachment.
The Strange Situation may also reflect Western assumptions about independence and separation. Different child-rearing practices could affect how infants respond to an unfamiliar environment.
Exam tip: Explain why the evidence matters. Cultural differences may challenge the universal application of an assessment, but they do not automatically mean that culture is the sole cause of attachment differences.
10. Maternal Deprivation and Institutionalisation
Bowlby’s maternal deprivation hypothesis proposed that prolonged separation from a primary attachment figure during early childhood could have serious consequences for emotional and intellectual development.
Bowlby’s 44 Thieves study
Bowlby compared 44 juvenile thieves with a comparison group of 44 young people described in the supplied material as non-delinquent but emotionally disturbed.
Fourteen of the thieves were identified as showing affectionless psychopathy, characterised by limited guilt and difficulty forming genuine emotional relationships. Bowlby linked early separation from mothers with these later difficulties.
Romanian adoptee research
The English and Romanian Adoptees study, led by Rutter, examined children who experienced early institutional care before being adopted by British families.
The supplied material highlights the importance of adoption timing. Children adopted before six months showed substantially fewer long-term difficulties than those adopted later, while later adoption was associated with greater risks of problems such as disinhibited attachment and lower measured intelligence.
Evaluation
The adoption research provides valuable evidence about the importance of early care and intervention.
However, Bowlby’s 44 Thieves study has been criticised because Bowlby conducted both the interviews and assessments, creating the possibility of researcher bias.
It is also essential to distinguish deprivation from privation:
- Deprivation means losing an attachment that has already formed.
- Privation means failing to form an attachment in the first place.
Institutionalisation research often concerns privation, making it important not to treat the two concepts as interchangeable.
11. The Behaviourist Approach
The behaviourist approach explains learning through associations and consequences.
Classical conditioning
Pavlov demonstrated classical conditioning through experiments with dogs. Food naturally produced salivation. After repeated pairing of a bell with food, the bell alone could trigger salivation.
The neutral stimulus became a conditioned stimulus, producing a conditioned response.
Operant conditioning
Skinner’s work focused on the consequences of behaviour.
- Positive reinforcement involves adding a desirable consequence.
- Negative reinforcement involves removing or avoiding an unpleasant consequence.
- Punishment makes behaviour less likely to be repeated.
Example: A student who receives praise for completing homework may become more likely to complete it regularly.
Exam tip: Do not confuse the two processes. Classical conditioning involves learning through association; operant conditioning involves learning through consequences.
12. Classical Conditioning: Explaining a Phobia
Imagine Marcus was frightened by a large dog as a child. As an adult, he experiences anxiety whenever he sees dogs, including small and calm ones.
The frightening incident acts as an unconditioned stimulus, naturally producing fear as an unconditioned response.
Through association, the dog becomes a conditioned stimulus capable of triggering a conditioned fear response.
Marcus’s fear of dogs beyond the original frightening animal demonstrates stimulus generalisation: the conditioned response spreads to similar stimuli.
Exam tip: Map each part of the scenario to the relevant psychological terminology. When a fear spreads beyond the original trigger, consider stimulus generalisation.
13. Definitions of Abnormality: Statistical Infrequency
Statistical infrequency defines abnormality in terms of characteristics or behaviours that are rare within a population.
A limitation is that rarity does not necessarily indicate a problem.
For example, an exceptionally high IQ may be statistically unusual but is not automatically considered a mental disorder. A very low IQ may raise different concerns depending on the individual’s functioning and support needs.
This demonstrates that statistical rarity alone cannot distinguish desirable characteristics from those associated with difficulties.
Exam tip: Support evaluation with a clear example and explain precisely why the example challenges the definition.
14. Systematic Desensitisation as a Treatment for Phobias
Systematic desensitisation is a behavioural treatment based on counterconditioning.
The aim is to replace a fear response with relaxation, using the principle of reciprocal inhibition.
The three main stages
- Relaxation training: The client learns techniques to relax.
- Anxiety hierarchy: The therapist and client rank feared situations from least to most frightening.
- Gradual exposure: The client encounters the feared situations progressively while using relaxation techniques.
The process continues until the phobic stimulus produces less anxiety.
Evaluation
Gilroy and colleagues’ research, as summarised in the supplied material, provides evidence that reductions in spider phobia can persist beyond the immediate treatment period.
However, the approach may be less suitable as a complete explanation or treatment for every phobia, particularly where biological preparedness contributes to the fear.
Exam tip: Remember the sequence of the three stages and explain counterconditioning. These are central elements of the treatment description.
15. Research Methods: Choosing Spearman’s Rho
Spearman’s rho is a non-parametric statistical test used to investigate the relationship between two variables using ranked data.
Suppose a researcher investigates the relationship between revision hours and examination scores in 20 students.
The justification for a statistical test should consider three questions:
- Is the researcher investigating a difference or a relationship?
- Is the design related or unrelated?
- What level of measurement is appropriate for the data?
Spearman’s rho may be suitable when a study investigates a correlation and the data meet the requirements for a rank-based, non-parametric test.
The supplied scenario requires particular care because both variables are described as continuous and interval-level. Those descriptions alone do not automatically justify Spearman’s rho over Pearson’s correlation coefficient. The researcher must establish which assumptions are met and follow the test-selection requirements taught for the course.
Exam tip: Never justify a test using only the word “correlation”. Explain the design, measurement level and relevant assumptions.
Section 2: The Hardest A Level Psychology Questions (7182)
The A Level section introduces more demanding essay questions, broader research evidence and topics including biopsychology, issues and debates, and schizophrenia.
16. Minority Influence: How Can a Minority Persuade a Majority?
Consider Aaron, who is the only member of a six-person study group who wants to change the project topic. He consistently presents the same reasons, and two other members begin to agree with him.
Four concepts explain how minority influence may develop.
Consistency: Aaron repeatedly presents the same position, encouraging other group members to reconsider their views.
Commitment: His continued effort despite being outnumbered may make his position appear credible. The augmentation principle concerns the additional influence associated with commitment that involves personal sacrifice or risk.
Flexibility: Aaron should remain open to reasonable counterarguments while maintaining his core position.
Snowball effect: As more group members adopt the minority view, support may grow until the position becomes the majority view.
Exam tip: Identify the fact that the individual is in the minority before applying the theory. Do not replace an answer about minority influence with a general discussion of conformity.
17. Situational Variables Affecting Obedience
Milgram investigated how features of a situation affect obedience to authority.
Proximity
In the baseline study, 65% of participants reportedly delivered the maximum 450-volt shock. When the learner was in the same room, obedience fell to 40%. When participants had to physically force the learner’s hand onto a shock plate, it fell to 30%.
These findings suggest that being physically closer to the victim can make harmful obedience more difficult.
When Milgram moved the experiment from Yale University to a less prestigious office building, obedience fell from 65% to 47.5%.
The finding suggests that an authority figure’s perceived legitimacy and the status of the institution can affect obedience.
Evaluation
Research by Meeus and Raaijmakers provides evidence that obedience can occur in different cultural contexts and when the harmful instruction does not involve electric shocks.
However, Orne and Holland questioned whether participants always believed the experimental situation. The research also raises ethical concerns because of deception and participant distress.
Exam tip: If a question asks for two situational variables, explain those two in depth. Use the baseline obedience rate to show the size and direction of the changes.
18. The Cognitive Interview
The cognitive interview is designed to improve eyewitness recall through techniques based on psychological understanding of memory.
Its four principal techniques are:
- Report everything: Recall all details, including apparently insignificant information.
- Reinstate the context: Mentally recreate the environment and emotional state associated with the event.
- Reverse the order: Recall events in a different sequence.
- Change perspective: Consider the event from another person’s viewpoint.
Evaluation
The supplied material reports that a meta-analysis by Köhnken and colleagues, covering 55 studies, found an average 41% increase in correct information compared with standard police interviews.
However, the cognitive interview can also increase incorrect information. It requires additional time and specialist training, so obtaining more details does not necessarily guarantee that every detail is accurate.
Exam tip: Explain the purpose of the techniques, not just their names. When evaluating effectiveness, distinguish the quantity of information recalled from its accuracy.
19. Misleading Information and Eyewitness Testimony
Research into misleading information examines how memory reports can be influenced by question wording and information received after an event.
Leading questions
Loftus and Palmer’s research showed that participants’ estimates of car speed changed depending on the verb used in a question.
Two explanations are important:
- Substitution bias: The misleading wording changes or influences the memory representation itself.
- Response bias: The memory remains unchanged, but the wording influences the answer given.
Post-event discussion
Gabbert and colleagues found that people who discussed an event after viewing different perspectives could report details they had not personally witnessed.
This demonstrates memory conformity, in which information from another witness influences an individual’s subsequent account.
Evaluation
These findings have practical value for police interviewing. Witnesses should be interviewed carefully and, where appropriate, separately to reduce the risk of memory contamination.
However, laboratory tasks may not reproduce the stress and consequences of witnessing a genuine crime. Foster and colleagues’ findings, discussed in the supplied material, suggest that the context and perceived importance of an event may influence identification accuracy.
Individual differences may also affect vulnerability to misleading information.
Exam tip: Cover both leading questions and post-event discussion in an extended essay. Do not devote the entire answer to just one type of misleading information.
20. The Strange Situation as an Assessment of Attachment
Ainsworth developed the Strange Situation as a controlled observation of infant attachment.
The procedure uses a standardised sequence of eight episodes involving the infant, caregiver and stranger. Researchers observe separation anxiety, stranger anxiety, exploration and reunion behaviour.
Attachment classifications
Secure attachment: The infant uses the caregiver as a secure base, may show moderate distress on separation and is generally comforted on reunion.
Insecure-avoidant attachment: The infant tends to show limited separation distress and may avoid or show little interest in the caregiver on reunion.
Insecure-resistant attachment: The infant may show intense separation distress and both seek and resist comfort when the caregiver returns.
Main and Solomon later identified insecure-disorganised attachment as an additional classification.
Evaluation
A strength is inter-rater reliability: trained observers can show substantial agreement when classifying infant behaviour.
The assessment may also have predictive value because attachment classifications have been associated with later social and emotional outcomes.
However, the procedure takes place in an unfamiliar laboratory setting and may not reflect behaviour at home. Cultural differences in childcare practices may also influence responses to separation. Takahashi’s research with Japanese infants is relevant to this criticism.
Exam tip: Describe the procedure before discussing its classifications. Then evaluate the assessment itself, considering reliability, validity and cultural relevance.
21. The Two-Process Model of Phobias
Mowrer’s two-process model explains both the acquisition and maintenance of phobias.
First process: Classical conditioning
A neutral stimulus becomes associated with an unpleasant experience and begins to trigger a fear response.
For example, a dog that frightens a child may later trigger fear simply because the child sees a dog.
Second process: Operant conditioning
The phobia is maintained through negative reinforcement.
Avoiding the feared stimulus reduces anxiety. Because this reduction is rewarding, avoidance becomes more likely to continue. The individual may therefore miss opportunities to learn that the feared stimulus is not necessarily dangerous.
Exam tip: Explain both processes. Classical conditioning explains how the fear can begin, while negative reinforcement explains how avoidance can maintain it.
22. The Cognitive Approach to Depression
The cognitive approach proposes that negative or irrational thinking patterns contribute to depression.
Beck’s negative triad
Beck suggested that negative schemas can develop earlier in life and be activated by stressful experiences. These schemas contribute to three negative patterns of thinking:
- Negative views of the self.
- Negative views of the world.
- Negative views of the future.
Together, these patterns can maintain pessimistic interpretations of everyday events.
Ellis’s ABC model
Ellis proposed that events do not automatically produce emotional consequences. Instead, the beliefs attached to those events influence how people feel and behave.
- A – Activating event: Something happens.
- B – Belief: The individual interprets the event.
- C – Consequence: The interpretation influences emotional and behavioural responses.
The extended ABCDE model includes disputing irrational beliefs and developing an effective alternative belief.
Cognitive behavioural therapy
CBT helps individuals identify, examine and challenge unhelpful thinking patterns. It may use evidence-based questioning and logical disputation to help develop more balanced interpretations.
Evaluation
Research linking negative interpretations with depression supports the cognitive explanation. CBT also has substantial evidence supporting its use in treating depression.
However, the direction of causality is difficult to establish: negative thinking might contribute to depression, but depression may also increase negative thinking.
A purely cognitive explanation may not account fully for all symptoms or biological influences.
Exam tip: Distinguish Beck’s emphasis on negative schemas and the negative triad from Ellis’s emphasis on irrational beliefs about events.
23. Psychodynamic Defence Mechanisms
The psychodynamic approach proposes that the ego uses unconscious defence mechanisms to protect itself from anxiety associated with psychological conflict.
Three examples are particularly useful in examination answers.
Repression: A distressing thought or memory is kept outside conscious awareness.
Denial: An individual refuses to accept an unpleasant reality.
Displacement: An emotion is redirected from its original source towards a less threatening target.
For example, an employee who is angry with a manager but directs that anger towards a safer target may be demonstrating displacement.
Evaluation
Some research into motivated forgetting has been interpreted as indirect support for aspects of repression.
However, unconscious processes are difficult to measure objectively. If a theory can explain both the presence and absence of evidence as confirmation of the same mechanism, it becomes difficult to test or falsify.
Exam tip: Define at least two mechanisms accurately and give distinct examples. In evaluation, explain why scientific testability matters.
24. How Psychology Emerged as a Science
Wilhelm Wundt is widely associated with the establishment of psychology as an independent scientific discipline. In 1879, he opened a psychology laboratory in Leipzig.
His method of introspection involved trained participants reporting their conscious experiences under controlled conditions.
Later, behaviourists such as Watson argued that psychology should focus on observable and measurable behaviour rather than subjective accounts of private mental processes.
The cognitive approach subsequently used controlled experiments and theoretical models to investigate mental processes. Biological psychology uses physical measurements and techniques to examine relationships between the brain and behaviour.
Evaluation
Controlled procedures, empirical evidence and replicability have strengthened psychology’s scientific methods.
However, introspection produced subjective data that could be difficult to verify independently. Conversely, Wundt’s work represented an important move towards systematic investigation when compared with earlier philosophical approaches.
Psychology has not developed in a completely uniform direction. The psychodynamic approach, for example, continues to rely on concepts that can be difficult to test scientifically.
Exam tip: Build a chronological argument. Explain how methods changed over time and evaluate the scientific strengths and weaknesses of those methods.
25. The Fight-or-Flight Response
The fight-or-flight response prepares the body to respond to an immediate threat.
Consider Leon, who hears fast footsteps behind him while walking alone at night. His heart begins to pound, his breathing quickens and he becomes highly alert.
The perceived threat activates the hypothalamus and the sympathetic branch of the autonomic nervous system. This stimulates the adrenal medulla to release adrenaline into the bloodstream.
Adrenaline contributes to physical changes such as increased heart rate and breathing rate, helping supply the muscles with oxygen and glucose.
The response prepares the individual to confront the threat or escape from it.
Exam tip: Explain the sequence from threat perception to sympathetic activation, adrenaline release and the physical response. Do not confuse the immediate sympathomedullary response with the slower hypothalamic–pituitary–adrenal system associated with more prolonged stress.
26. Localisation of Function in the Brain
Localisation of function proposes that particular brain areas are associated with particular psychological or physical functions.
Broca’s area is associated with speech production. Damage may produce Broca’s aphasia, involving slow or laboured speech.
Wernicke’s area is associated with language comprehension. Damage may produce fluent but meaningless speech and difficulties understanding language.
Evaluation
Sperry’s split-brain research provides evidence of functional differences between the brain’s hemispheres. When information was presented to the left visual field, it was initially processed by the right hemisphere. Patients could sometimes identify the object manually using the left hand but could not verbally name it because language production was typically associated with the left hemisphere.
However, Lashley’s research on rats suggested that learning and memory may be distributed across broader areas of the cortex. His work challenged the idea that all complex functions are confined to individual locations.
Exam tip: Describe exactly which visual field receives the information, which hemisphere processes it and whether the response is verbal or manual.
A related t-test is used to investigate whether there is a significant difference between the means of two related sets of scores when the relevant parametric assumptions are met.
Consider a study in which 24 participants complete a reaction-time task after consuming both a caffeinated and a decaffeinated drink.
A strong justification identifies three features.
Research aim: The psychologist is investigating a difference between two conditions, rather than a correlation between two variables.
Experimental design: The same participants complete both conditions. This is a repeated-measures, or related, design.
Level of measurement: Reaction time measured in milliseconds is numerical interval-level data, making a parametric test potentially appropriate when its assumptions are satisfied.
Together, these features justify considering a related t-test.
Exam tip: Explain difference versus correlation, related versus unrelated design, and level of measurement. Always check the stated design and assumptions before selecting a statistical test.
28. Type I and Type II Errors
Statistical significance involves a risk of drawing the wrong conclusion about a research hypothesis.
Type I error: The researcher rejects a true null hypothesis, incorrectly concluding that an effect exists. This is a false positive.
Type II error: The researcher fails to reject a false null hypothesis, incorrectly concluding that sufficient evidence of an effect has not been established. This is a false negative.
Psychologists commonly use a significance level of 0.05 as a conventional threshold. It represents a balance between the risks of false-positive and false-negative conclusions, although the actual probabilities also depend on factors such as statistical power and the study design.
A stricter significance threshold generally reduces the risk of a Type I error but may increase the risk of a Type II error if other factors remain unchanged.
Exam tip: Do not reverse the definitions. Remember that Type I involves a false positive, while Type II involves a false negative.
29. Gender Bias in Psychological Research
Gender bias occurs when psychological theories or research findings give a distorted or incomplete account of gender-related behaviour.
Two important forms are:
Alpha bias: Exaggerates differences between genders.
Beta bias: Minimises or ignores differences between genders.
Beta bias can contribute to androcentrism, where male behaviour is treated as the standard against which other behaviour is judged.
Real-world implications
If research samples do not adequately represent women, findings may be generalised inappropriately. In some circumstances, this can contribute to diagnostic criteria or treatments that do not work equally well for everyone.
Psychologists can reduce bias through reflexivity, representative sampling and careful consideration of whether research findings apply across different groups.
Exam tip: Define alpha and beta bias precisely, explain a consequence and identify a practical way researchers can reduce bias.
30. Biological Explanations for Schizophrenia
Biological explanations focus on genetic influences and neurochemical processes that may contribute to schizophrenia.
Genetic explanation
Schizophrenia is considered polygenic, meaning that multiple genes contribute to vulnerability. It is also aetiologically heterogeneous, meaning that different combinations of factors may lead to the same diagnosis.
Family, twin and adoption research supports a genetic contribution. The supplied material reports concordance rates of approximately 48% for monozygotic twins and 17% for dizygotic twins in Gottesman’s pooled European twin research.
These findings suggest a genetic influence but do not establish that genes are the only cause.
Dopamine hypothesis
The original dopamine hypothesis proposed excessive dopamine activity in certain subcortical brain regions, particularly in relation to positive symptoms such as hallucinations and delusions.
A revised version also proposes reduced dopamine activity in the prefrontal cortex in relation to some negative symptoms, such as avolition and poverty of speech.
Evaluation
The effectiveness of dopamine-antagonist antipsychotic medication provides evidence consistent with the role of dopamine in schizophrenia.
However, not everyone responds to dopamine-focused treatment. Other neurotransmitter systems, including serotonin and glutamate, may also be involved.
Twin concordance findings are correlational and cannot completely exclude environmental influences. The fact that identical twins do not show 100% concordance also suggests that genetic vulnerability alone does not determine the outcome.
The diathesis-stress model offers an interactionist explanation: a biological vulnerability may combine with environmental stressors to increase the likelihood of developing the disorder.
Exam tip: Cover both genetics and neurochemistry. In evaluation, consider the limitations of correlational evidence, the incomplete nature of the dopamine hypothesis and the possible interaction between biological and environmental factors.
How to Write High-Scoring AQA Psychology Answers
Knowing the content is only part of examination preparation. Students must also present their knowledge in a way that answers the precise question.
1. Pay attention to command words
Different command words require different responses.
| Command word | What your answer should do |
|---|---|
| Identify | Name the relevant concept or classification. |
| Outline | Describe the essential features accurately. |
| Explain | Show how or why something happens. |
| Apply | Connect theory to specific details in a scenario. |
| Discuss | Present relevant knowledge and develop an argument, including evaluation where required. |
| Evaluate | Examine the strengths, weaknesses and implications of an explanation or piece of evidence. |
A frequent mistake is writing everything you know about a topic rather than selecting the knowledge that answers the question.
2. Use the PEEL structure for evaluation
PEEL stands for Point, Evidence, Explanation and Link.
- Point: State a strength or limitation.
- Evidence: Support it with a relevant study or example.
- Explanation: Explain what the evidence shows.
- Link: Connect the evaluation to the theory or question.
For example, when evaluating the multi-store model, you could use evidence from patient KF to challenge the assumption that short-term memory is a single, unitary store. Explain why his different verbal and visual memory abilities suggest that STM contains separate components.
This is stronger than merely stating that the model has limitations.
3. Make research studies work for your argument
When using a study, try to remember four things:
- The researcher’s name and date, where relevant.
- The aim or procedure.
- The main finding.
- What the finding means for the theory.
You do not need to reproduce every detail of a study. Select the details that support the point you are making.
For example, Loftus and Palmer’s speed estimates are useful because the difference between the “contacted” and “smashed” conditions demonstrates how question wording can influence eyewitness reports.
4. Apply psychological concepts directly to scenarios
For AO2 questions, underline the important details in the scenario before writing.
If a student publicly agrees with a group while privately disagreeing, the distinction between normative social influence and internalisation is relevant.
If an individual fears several animals after one frightening encounter, stimulus generalisation may be relevant.
Every application point should connect a psychological concept to a specific feature of the scenario.
5. Avoid common examination mistakes
The most important mistakes to avoid include:
- Confusing compliance with internalisation.
- Describing a theory without evaluating it when evaluation is required.
- Writing generic AO2 answers without referring to the scenario.
- Using study names without explaining their findings.
- Mixing up deprivation and privation.
- Describing classical conditioning when a question asks about operant conditioning.
- Omitting one of the required strands in an extended essay.
- Confusing Type I and Type II errors.
- Choosing a statistical test without considering design and measurement.
- Adding irrelevant information that does not answer the question.
Frequently Asked Questions About AQA Psychology Exams
1. What are the hardest topics in AQA A Level Psychology?
The difficulty varies between students, but topics involving extended evaluation, application and detailed research evidence can be challenging. The questions covered here include obedience, misleading information, attachment, depression, biopsychology, schizophrenia and statistical testing.
2. How do I improve my AO3 marks in Psychology?
Develop each evaluative point rather than simply naming a strength or weakness. Use evidence where appropriate, explain its implications and link the argument back to the theory or question.
3. How should I revise psychological studies?
Use a structured study summary containing the aim, procedure, findings and conclusion. Add one or two evaluation points explaining the study’s relevance and limitations.
4. How do I answer AQA Psychology application questions?
Identify the psychological concept first. Then connect it directly to the scenario using the specific behaviours, events or circumstances provided in the question.
5. Is memorising model answers enough to achieve high marks?
No. Model answers help demonstrate how psychological knowledge can be organised, but examination questions may use unfamiliar scenarios or different wording. Understanding the concepts and practising their application is more useful than memorising a fixed response.
6. How can I improve my performance on 16-mark essays?
Plan the main knowledge points and evaluation arguments before writing. Cover all parts of the question, use relevant research evidence and develop a clear argument rather than listing unrelated strengths and weaknesses.
7. What is the difference between AS Psychology and A Level Psychology?
The AS qualification covers a narrower range of content, while the full A Level qualification includes additional material and more demanding assessment requirements. Students should check the current AQA specification for the precise content and assessment structure applicable to their qualification.
Conclusion: Turn Psychological Knowledge into Examination Skills
Preparing for AQA AS and A Level Psychology requires more than remembering definitions and researchers. Students must understand psychological explanations, apply them to unfamiliar situations and evaluate the evidence supporting them.
The 30 practice questions in this guide cover key areas of the specification, from conformity and memory to research methods, biopsychology and schizophrenia. They also illustrate the difference between describing a concept and using it effectively in an examination answer.
The most useful revision approach is to combine accurate subject knowledge with regular exam practice. Learn the key terminology, retain the research findings that matter, practise applying theories to scenarios and develop evaluation points that explain why the evidence matters.
Most importantly, answer the question that has been asked. A focused, well-supported answer is more valuable than a lengthy response filled with unrelated information.