15 A-Level Psychology Approaches Studies for Stronger AO3
What does it mean to “use a study as AO3”?
Simply naming a study is not evaluation. A strong AO3 paragraph should:
Make a clear evaluative point.
Introduce relevant research evidence.
State the important finding.
Explain whether the evidence supports or challenges the approach.
Link back to the question.
For example:
A strength of social learning theory is that it has research support. Bandura, Ross and Ross found that children who observed an aggressive adult model subsequently behaved more aggressively towards a Bobo doll. This supports the claim that behaviour can be acquired indirectly through observation and imitation. Therefore, learning cannot be explained solely through direct reinforcement, increasing the explanatory power of social learning theory.
The final two sentences are vital. They turn knowledge of a study into AO3 analysis.
Five Must-Know Studies
These studies deserve the most attention. Students should know their basic procedure and findings, together with how they can be used in an argument.
1. Pavlov (1927): classical conditioning
What did Pavlov find?
Pavlov observed that dogs naturally salivated when food was presented. Food was an unconditioned stimulus, and salivation was an unconditioned response. Pavlov repeatedly paired food with a previously neutral stimulus, commonly described in textbooks as a bell. Eventually, the neutral stimulus became a conditioned stimulus that produced salivation as a conditioned response, even when food was absent.
How can it be used as AO3?
Pavlov provides controlled scientific evidence that behaviour can be learned through association. This supports the behaviourist view that behaviour is acquired from environmental experience.
However, the research used non-human animals. Although behaviourists argue that basic learning processes are shared across species, human behaviour is often affected by thought, language and emotion. Generalising from dogs to complex human behaviour may therefore be reductionist.
AO3 model
A strength of the behaviourist approach is that classical conditioning is supported by controlled research. Pavlov demonstrated that dogs could learn to salivate to a previously neutral stimulus after it had been repeatedly paired with food. This establishes a cause-and-effect relationship between environmental association and learned behaviour. However, because the research involved dogs, the findings may not fully explain complex human behaviour involving conscious thought.
2. Skinner (1948/1953): operant conditioning
What did Skinner find?
Skinner studied rats and pigeons in controlled chambers sometimes called Skinner boxes. An animal might receive food after pressing a lever, demonstrating positive reinforcement, or perform a behaviour to escape something unpleasant, demonstrating negative reinforcement. Punished behaviour became less likely to be repeated.
Skinner concluded that behaviour is shaped and maintained by its consequences.
How can it be used as AO3?
The controlled conditions allowed Skinner to manipulate consequences and measure their effects objectively. This gives the behaviourist approach scientific credibility.
Operant conditioning also has practical applications. Token economy programmes, behavioural modification and classroom reward systems use reinforcement to increase desirable behaviour.
The limitation is that controlled animal research may oversimplify human behaviour. People do not merely respond mechanically to rewards and punishments; expectations, beliefs and social context can influence their actions.
AO3 model
A strength of operant conditioning is its practical application. Skinner demonstrated that behaviour could be shaped by reinforcement and punishment. These principles have been used in token economy programmes and classroom behaviour management. The ability to produce useful behavioural change increases the practical value of the behaviourist approach.
3. Bandura, Ross and Ross (1961): the Bobo doll study
What did Bandura and colleagues find?
Children watched an adult model behave either aggressively or non-aggressively towards a Bobo doll. Children exposed to the aggressive model later displayed more imitative aggressive acts than those who observed the non-aggressive model. Boys showed more imitation of physical aggression, particularly after observing a male model.
The findings support the role of observation, modelling, imitation and identification in learning.
How can it be used as AO3?
The research supports social learning theory because children reproduced behaviour they had observed without being directly reinforced for acquiring it. This demonstrates that learning can occur indirectly.
However, striking a Bobo doll may not represent genuine aggression because the toy is designed to be hit and springs back upright. The study may therefore lack mundane realism, and its findings may not explain serious aggression outside the laboratory.
AO3 model
A strength of social learning theory is that it is supported by experimental evidence. Bandura, Ross and Ross found that children who observed an aggressive model later imitated many of the model’s aggressive acts. This supports the suggestion that behaviour can be acquired through observation rather than direct reinforcement. Nevertheless, hitting a Bobo doll may not reflect harmful real-world aggression, limiting the validity of the evidence.
4. Maguire et al. (2000): brain structure and experience
What did Maguire and colleagues find?
Maguire et al. used MRI scans to compare the brains of London taxi drivers with those of a control group. Taxi drivers had greater grey-matter volume in the posterior hippocampus, a region associated with spatial navigation. Hippocampal differences were also related to time spent working as a taxi driver.
How can it be used as AO3?
This research supports the biological claim that behaviour and experience are associated with physical brain structures. Objective brain scans also add scientific credibility.
However, this was a quasi-experiment and participants were not randomly allocated to become taxi drivers. The findings demonstrate a relationship but cannot establish with certainty that navigating London caused the brain differences. Pre-existing differences might have helped some people succeed as taxi drivers.
Important specification note
Under the revised course, methods of studying the brain and plasticity sit within Biopsychology. Maguire should therefore be treated as optional supporting AO3—not as a compulsory named Approaches study.
AO3 model
A strength of the biological approach is its use of objective scientific evidence. Maguire et al. used MRI scans and found structural differences in the hippocampi of London taxi drivers. This supports the view that biological structures are associated with behaviour. However, the study was correlational, so it cannot establish whether navigation caused the differences.
5. Freud (1909): Little Hans
What did Freud report?
Little Hans developed a fear of horses. Freud interpreted the phobia through the Oedipus complex, suggesting that Hans unconsciously feared his father and displaced this fear onto horses. Freud used the case as evidence for unconscious conflict, defence mechanisms and psychosexual development.
Most information was collected by Hans’s father and communicated to Freud, rather than obtained through Freud directly observing the child.
How can it be used as AO3?
The detailed case study generated rich information and appeared to support several psychodynamic concepts. It also helped establish the importance of childhood experience in later psychological development.
However, Freud’s interpretation was subjective and alternative explanations were possible. Hans may have developed his fear through classical conditioning after witnessing a horse collapse. Evidence that can be interpreted in several ways provides weak scientific support for the psychodynamic approach.
AO3 model
A weakness of the psychodynamic approach is that much of its supporting evidence is open to subjective interpretation. Freud explained Little Hans’s fear through unconscious conflict and the Oedipus complex. However, the same fear could be explained through classical conditioning after Hans witnessed a horse collapse. This means the case does not provide conclusive evidence for Freud’s explanation.
Five Should-Know Studies
Students do not need the same level of procedural detail for these studies. Learn the central finding and the particular argument it can support.
6. Watson and Rayner (1920): Little Albert
What did they find?
Watson and Rayner repeatedly paired a white rat with a sudden frightening noise. Albert subsequently showed fear towards the rat and appeared to generalise this response to other furry objects.
How can it be used as AO3?
The study supports the behaviourist claim that emotional responses can be learned through classical conditioning. It also suggests that behaviourist principles apply to humans rather than only animals.
However, it was a single case involving a very young child, so generalisation is limited. The procedure also caused distress and would not meet modern ethical standards. In addition, later historical analysis has questioned aspects of Albert’s identity and health, reducing confidence in the original interpretation.
AO3 model
A strength of the behaviourist approach is that conditioning has been demonstrated in a human participant. Watson and Rayner conditioned Little Albert to fear a white rat by pairing it with a frightening noise. This supports the environmental explanation of learned emotional responses. However, conclusions drawn from one child cannot be confidently generalised to all people.
7. Bandura, Ross and Ross (1963): live and filmed models
What did they find?
Children observed aggressive behaviour presented by a live adult, on film or through a cartoon. Children exposed to these models subsequently displayed more aggression than children in the control condition. The research suggested that behaviour could be learned from symbolic media models as well as people physically present.
How can it be used as AO3?
The findings extend social learning theory and demonstrate its ability to explain the potential influence of television, film and other media. This gives the approach real-world relevance.
However, the study still measured short-term behaviour towards a Bobo doll in an artificial setting. It cannot prove that viewing aggressive media causes enduring violence outside the laboratory.
AO3 model
A strength of social learning theory is that it can explain the possible influence of media models. Bandura and colleagues found that children imitated aggression shown by filmed and cartoon models. This supports the claim that people can learn from symbolic models without direct contact. However, the study measured immediate imitation rather than long-term real-world aggression.
8. Bartlett (1932): War of the Ghosts
What did Bartlett find?
British participants recalled a Native American folk story that contained unfamiliar ideas and structure. With repeated recall, accounts often became shorter and more conventional. Participants altered details to make the story fit their cultural expectations.
Bartlett concluded that memory is reconstructive and influenced by existing schemas.
How can it be used as AO3?
The study supports the cognitive approach because internal schemas appeared to shape recall. It demonstrates the value of making inferences about mental processes from observable behaviour.
However, Bartlett did not standardise all procedures and sometimes prompted participants. Replication is therefore difficult, reducing the reliability of the evidence.
AO3 model
A strength of the cognitive approach is that schema theory has supporting evidence. Bartlett found that participants changed an unfamiliar story so that it matched their cultural expectations. This suggests that internal schemas influence how information is processed and recalled. However, the procedure lacked standardisation, which reduces confidence in the reliability of the findings.
9. McGuffin et al. (1996): genetic influence on depression
What did they find?
McGuffin and colleagues reported higher concordance for depression among monozygotic twins than dizygotic twins, with especially high concordance for severe depression. Because identical twins share more genetic material, this pattern suggests a genetic contribution.
How can it be used as AO3?
This supports the biological approach’s assumption that inherited factors influence behaviour and mental processes.
Concordance among identical twins was not 100%, however. This suggests that genes alone cannot explain depression and that environmental factors are also important. The findings therefore support an interactionist rather than a purely biological explanation.
AO3 model
A strength of the biological approach is that genetic influences are supported by twin research. McGuffin et al. found higher concordance for depression among identical than non-identical twins. This supports a genetic contribution because identical twins share more genes. However, concordance was below 100%, showing that environmental experience must also contribute.
10. Harter et al. (1996): approval and the self
What did Harter and colleagues find?
Research by Harter and colleagues examined perceived support, approval and false-self behaviour during adolescence. Young people whose sense of worth depended heavily on approval from others were more likely to report difficulties involving self-worth and presenting a false self.
This is consistent with Rogers’ proposal that conditions of worth can produce incongruence between the self-concept and the person’s genuine experience.
How can it be used as AO3?
The findings give empirical support to a concept that might otherwise appear abstract and difficult to test. They suggest that conditional acceptance can be associated with poorer psychological adjustment.
However, much of the evidence relies on self-report and is correlational. It cannot demonstrate that conditions of worth directly caused low self-worth or false-self behaviour.
AO3 model
A strength of the humanistic approach is that there is evidence consistent with conditions of worth. Harter et al. found that adolescents whose worth depended on others’ approval were more likely to report false-self behaviour and difficulties with self-worth. This supports Rogers’ claim that conditional acceptance can contribute to incongruence. However, correlational evidence cannot establish cause and effect.
Five Could-Know Studies
These studies are best used selectively. One accurately explained piece of evidence is more valuable than several names added without analysis.
11. Tolman (1948): latent learning and cognitive maps
What did Tolman find?
Tolman studied rats navigating mazes. Rats allowed to explore without an immediate reward appeared to learn the layout and showed rapid improvement when a reward was later introduced. Tolman argued that they had formed internal cognitive maps.
How can it be used as AO3?
The findings challenge radical behaviourism because learning appeared to occur without immediate reinforcement. They suggest that internal mental representations intervene between stimulus and response.
However, the research still used rats in artificial mazes. Its relevance to complex human cognition may therefore be limited.
AO3 model
A weakness of strict behaviourism is that it may overlook internal mental processes. Tolman found that rats appeared to form cognitive maps even when their exploration was not immediately reinforced. This suggests that learning involves internal representation rather than only stimulus-response associations. Consequently, the cognitive approach may provide a fuller explanation of learning.
12. Kendler et al. (2006): heritability of major depression
What did Kendler and colleagues find?
Using data from a large Swedish twin sample, Kendler et al. concluded that major depression was moderately heritable. The estimated heritability was approximately 38%, with evidence that genetic influences were stronger in women than men.
How can it be used as AO3?
The large sample strengthens the reliability and population validity of the genetic evidence supporting the biological approach.
At the same time, an estimated heritability of 38% leaves substantial variation associated with non-genetic factors. The study therefore challenges biologically deterministic claims and supports a combined genetic-environmental explanation.
AO3 model
A strength of the biological approach is support from large-scale twin research. Kendler et al. estimated the heritability of major depression at approximately 38%. This provides evidence that genetic differences influence behaviour. However, most variation was not attributed to genetic effects, so a purely biological account is incomplete.
13. Raine et al. (1997): brain activity and violent behaviour
What did Raine and colleagues find?
Raine et al. used PET scans to compare 41 people charged with murder or manslaughter who pleaded not guilty by reason of insanity with matched controls. The groups differed in activity across several brain areas, including reduced prefrontal activity in the offender group.
How can it be used as AO3?
The research supports the biological approach by demonstrating an association between brain functioning and violent behaviour. The use of PET scanning provided objective, quantifiable evidence.
However, it was a quasi-experiment and cannot show that atypical brain activity caused violence. Medication, mental disorder, head injury and life experience could also have influenced brain functioning.
AO3 model
A strength of the biological approach is its use of objective methods. Raine et al. used PET scans and found differences in brain activity between offenders pleading not guilty by reason of insanity and matched controls. This suggests that biological functioning is associated with behaviour. Nevertheless, the quasi-experimental design prevents a firm causal conclusion.
14. Fisher and Greenberg (1996): evaluating Freud
What did they conclude?
Fisher and Greenberg reviewed research relating to several Freudian claims. They concluded that some general propositions had support, but evidence did not consistently confirm all of Freud’s specific explanations.
This is better described as a research review than as one experiment.
How can it be used as AO3?
The review can challenge the claim that every aspect of psychodynamic theory is completely unsupported. Nevertheless, partial or indirect support does not validate the entire theory, particularly its more difficult-to-test concepts.
AO3 model
A strength of the psychodynamic approach is that some of its general claims have received research support. Fisher and Greenberg’s review found evidence consistent with parts of Freud’s theory. This suggests that the approach should not be dismissed entirely. However, support for some propositions does not establish the validity of concepts such as the Oedipus complex, which remain difficult to test scientifically.
15. Elliott (2002): effectiveness of humanistic therapies
What did Elliott find?
Elliott reviewed outcome research into humanistic and experiential psychotherapies. The evidence indicated that clients generally improved following therapy and that humanistic therapies could produce outcomes comparable with other established approaches.
This is a meta-analytic research review, not a single laboratory experiment.
How can it be used as AO3?
The findings support the practical application of humanistic principles such as empathy, genuineness and unconditional positive regard. If therapies based on an approach improve clients’ wellbeing, this adds to the approach’s usefulness.
However, successful therapy does not prove that every theoretical assumption behind it is correct. Improvement may result from common therapeutic factors, including receiving attention and forming a trusting relationship.
AO3 model
A strength of the humanistic approach is its successful application to therapy. Elliott’s review found that humanistic therapies were generally effective and could achieve outcomes comparable with other therapies. This demonstrates the practical value of principles such as empathy and unconditional positive regard. However, therapeutic success does not necessarily prove that all humanistic assumptions are valid.
How many studies should students actually learn?
Students should avoid treating the list as 15 separate case studies that must all be memorised in full.
Learn Pavlov, Skinner and Bandura carefully because AQA names their research explicitly.
Know the central finding and one limitation for the remaining Must studies.
Learn one or two Should studies that strengthen weaker areas of your knowledge.
Select Could studies strategically to develop distinctive AO3 arguments.
For most essays, two or three well-developed evaluation paragraphs will be more effective than a long list of unexplained research names.
A simple AO3 sentence structure
Use the following structure when turning a study into evaluation:
A strength/weakness of [approach] is… This is supported/challenged by [researcher], who found… This matters because… Therefore…
The phrase “This matters because…” forces you to explain the significance of the evidence. That explanation is what moves the paragraph beyond description.
Final revision advice
The aim is not to memorise as many researchers as possible. The aim is to build a small and flexible evidence bank. Students who can explain precisely how a finding supports, challenges or applies an approach are far more likely to produce effective AO3 than students who simply list studies.
Start with the three named researchers, then add evidence where it improves a particular argument. That is a manageable and purposeful way to revise Approaches.