Clinical Psychology A2 overview and key studies
- Syllabus
- 9990–2028–2029
- Topic
- —
- Level
- A2
Learning objectives
—Clinical Psychology overview• Specialist Option 1: Clinical Psychology- Clinical psychology is the study of a range of mental and behavioural disorders/conditions and the potential explanations and available treatments for them. There are many competing explanations and treatments for the conditions/disorders. Candidates will be expected to understand the strengths and weaknesses of these explanations and treatments and compare them with each other. Candidates should have the opportunity to explore the different issues and debates relevant to the psychological theories and concepts and the research methods used to investigate these conditions/disorders. For all topics and studies, candidates should be able to:- describe, evaluate and compare the psychological theories, research, approaches, explanations and treatments/therapies- describe and evaluate research methods and methodological concepts (for AS and A Level)- consider how the topic area relates to psychological issues and debates (for AS and A Level)- apply the findings of the study and topic area to the real world. After each topic there is a list of issues and debates and research methodology which are most relevant to the topic. This list is not exhaustive and teachers may use other relevant issues and methodology in their teaching. At A Level we assume knowledge of the approaches studied at AS Level (biological, cognitive, learning and social) but we introduce the following terms for this option.- Biological- - explanations (genetic, biochemical)- - measures (such as blood pressure)- - treatments (such as electro-convulsive therapy)- Psychological- - explanations (behavioural, cognitive and psychodynamic)- - therapies (such as systematic desensitisation)—Clinical Psychology key studies• Key studies for Clinical Psychology- Freeman, D, Slater, M, Bebbington, P E, Garety, P A, Kuipers, E, Fowler, D, Met, A, Read, C, Jordan, J and- Vinayagamoorthy, V (2003), Can virtual reality be used to investigate persecutory ideation? The Journal of- Nervous and Mental Disease, 191(8): 509-14- Oruč, L, Verheyen, G R, Furac, I, Jakovljević, M, Ivezić, S, Raeymaekers, P and Broeckhoven, C V (1997),- Association analysis of the 5‐HT2C receptor and 5‐HT transporter genes in bipolar disorder. American Journal- of Medical Genetics, 74(5): 504-6- Grant, J E, Kim, S W, Hollander, E and Potenza, M N (2008), Predicting response to opiate antagonists and- placebo in the treatment of pathological gambling. Psychopharmacology, 200(4): 521-27- Chapman, L K and DeLapp, R C (2013), Nine Session Treatment of a Blood-Injection-Injury Phobia With- Manualized Cognitive Behavioral Therapy: An Adult Case Example. Clinical Case Studies, 20(10): 299-312- Lovell, K, Cox, D, Haddock, G, Jones, C, Raines, D, Garvey, R, Roberts, C and Hadley, S (2006), Telephone- administered cognitive behaviour therapy for treatment of obsessive compulsive disorder: randomised- controlled non-inferiority trial. BMJ: British Medical Journal, 333(7574): 883—Clinical Psychology key-study requirements• For each key study, candidates should know, understand and evaluate- the context of the study and relationship to other studies- the main theories/explanations included in the study- the aim(s) and hypotheses of the study [if stated]- the design of the study, including all methodology as appropriate, such as the research method(s) used, sample size and demographics [if known] and sampling technique [if known], procedure, technique for data collection- the results, findings and conclusions of the study- the main discussion points of the study.- describe and evaluate research methods used in and methodological concepts included in the study (for AS and A Level)- describe and evaluate the psychological issues and debates (for AS and A Level) included in the study.- Note: for the purposes of the subject content and assessment material we will use the terms used in ICD-11. We are aware that this set of guidelines is not used universally and will accept alternative terms if used appropriately.
Clinical psychology compares explanations, evidence and treatments across levels
Clinical psychology studies mental and behavioural disorders/conditions, competing explanations and available treatments. For every topic: describe, compare and evaluate theory/evidence/treatment; evaluate AS/A Level methods; apply issues/debates; and judge real-world use.
| Level | Explanations/measures | Treatments/examples | Main evaluation |
|---|---|---|---|
| Biological | Genetic/biochemical mechanisms; physiological measures such as blood pressure | Medication and biological treatments such as ECT | Objective mechanism evidence, reductionism, side effects, individual variation |
| Behavioural/learning | Conditioning, reinforcement and avoidance | Exposure/systematic desensitisation/behaviour change | Observable/testable and applied, but may omit cognition/history |
| Cognitive | Beliefs, appraisals, biases and schemas | CBT/cognitive restructuring | Targets meaning/skills; self-report and causal-direction issues |
| Psychodynamic | Unconscious conflict and early experience | Insight-oriented therapy | Holistic/idiographic depth; low falsifiability/reliability concerns |
| Integrated | Biological × psychological × social interaction | Combined/stepped/personalised care | Realistic but complex to isolate and evaluate |
For each condition compare: defining features/measurement → explanation mechanism and prediction → supporting/challenging evidence → treatment mechanism and outcome → validity/reliability/ethics → nature–nurture, reductionism–holism, determinism, culture/individual differences → appropriate application.
A diagnosis describes a pattern; it is not an explanation. Treatment success does not prove the treatment's theory caused the condition because placebo, common therapy factors, regression and natural change remain alternatives. Competing levels may interact.
Five Clinical key studies anchor five conditions and five evidence architectures
| Key study | Clinical anchor | Evidence architecture to learn |
|---|---|---|
| Freeman et al. (2003) | Persecutory ideation/paranoia | Virtual-reality social environment, ideation measures and validity/application |
| Oruč et al. (1997) | Bipolar disorder | Candidate-gene association, groups/alleles and correlation-not-cause boundary |
| Grant et al. (2008) | Gambling disorder | Opiate-antagonist versus placebo treatment and response predictors |
| Chapman & DeLapp (2013) | Blood-injection-injury phobia | Nine-session manualised CBT single-case trajectory |
| Lovell et al. (2006) | Obsessive-compulsive disorder | Telephone versus face-to-face CBT randomised non-inferiority trial |
Route for each: condition/context → explanation/treatment question → design/sample/procedure/measures → exact results → bounded conclusion → main discussion → method/ethics → relevant debates/application. Downstream cards supply the detailed study evidence; this card prevents cross-study mixing.
| Comparison opportunity | Studies |
|---|---|
| Explanation versus treatment evidence | Freeman/Oruč versus Grant/Chapman/Lovell |
| Laboratory/VR, genetic association, RCT and case study | Across all five |
| Nomothetic group effects versus idiographic change | RCT/association studies versus Chapman case |
| Biological versus psychological/combined intervention | Oruč/Grant versus Chapman/Lovell |
The citation list is a map, not the complete study knowledge. Do not transfer a sample, measure or result from one study to another. Genetic association is not a treatment trial; non-inferiority is not proof of identical outcomes; a single successful case is not population efficacy.
Every Clinical key study requires a complete theory–method–evidence–debate audit
| Layer | Required knowledge and evaluation |
|---|---|
| Context/relationship | Clinical condition, prior evidence and relation to other studies |
| Theory | Main biological/psychological explanation or treatment mechanism and prediction |
| Aim/hypothesis | Exact question and stated null/alternative where present—do not invent one |
| Design/method | Method/design, sample size/demographics/sampling if known, variables/controls, procedure and data techniques |
| Evidence | Exact quantitative/qualitative results and correct comparison |
| Meaning | Findings, bounded conclusion and main discussion points/alternatives |
| Evaluation | AS/A Level methods, validity/reliability/ethics/generalisation/application |
| Debates | Relevant nature–nurture, levels, determinism, culture, idiographic/nomothetic and individual/situational analysis |
Evidence paragraph: make clinical claim → cite exact study design/sample/result → explain the inference → evaluate the method/alternative → connect to debate or real-world use → judge scope. Keep result (observed pattern) separate from conclusion (meaning).
Use ICD-11 terminology for syllabus/assessment consistency. Appropriate alternative terms are acceptable; define them and keep the construct consistent. Language should describe people respectfully and avoid converting group averages into identity or inevitability.
Do not invent missing hypotheses, demographics or sampling. 'If known/if stated' is a source boundary. A complete method narrative without theory/results/discussion is incomplete, as is a result list without inference, methods and debates.