Psychological assessment
Clinical inference, judgement and assessment reports
How clinicians combine information, common judgement errors, clinical versus actuarial prediction, and writing an integrated, useful report.
What this module draws on:
- Textbook concept Clinical inference and judgement; communicating results; integrated assessment reports (Ch. 8).
- Original elaboration Report template and rewriting exercise.
- Contemporary update Debiasing strategies and feedback practices.
Learning objectives
After this module you should be able to:
- Describe how clinicians integrate information and where judgement goes wrong.
- Explain the clinical versus actuarial prediction debate.
- Structure an integrated psychological report.
- Rewrite jargon-heavy statements into clear, respectful language.
Introduction
Assessment ends with judgement and communication. Clinicians must turn interviews, observations and scores into conclusions — and then explain them in a way that helps the person and the referrer. Both steps are vulnerable to error.
How judgement goes wrong Textbook concept
The textbook reviews research, associated with Meehl and others, showing that statistical (actuarial) combination of data often equals or outperforms unaided clinical judgement for specific predictions. Clinical judgement remains essential for formulating questions, gathering data and understanding individuals — but structured methods can improve accuracy.
- Confirmation bias — seeking information that fits an early hypothesis.
- Anchoring — over-weighting the first information received.
- Availability — judging likelihood by how easily examples come to mind.
- Overconfidence — experience does not always improve accuracy.
- Ignoring base rates — forgetting how common a condition is.
Debiasing strategies Contemporary update
- Generate alternative hypotheses explicitly and look for disconfirming evidence.
- Use structured instruments and decision aids where validated.
- Consider base rates before interpreting a result.
- Seek supervision or peer consultation on complex cases.
- Track your own predictions against outcomes.
Structure of an integrated report Original elaboration
| Section | Content |
|---|---|
| Identifying information and referral question | Who, by whom, and exactly what was asked |
| Procedures | Interviews, records, observations and instruments used |
| Background | Relevant history from all sources, attributed |
| Behavioural observations | How the person presented during assessment |
| Results | Organised by domain or question, not test by test |
| Integration and formulation | How findings fit together; alternative explanations considered |
| Diagnostic impressions (if appropriate) | Using current classification, with uncertainty acknowledged |
| Recommendations | Specific, practical and linked to findings |
| Limitations | Language, cultural fit of norms, effort, missing information |
Communicating results Textbook concept
Reports should answer the referral question in clear language, avoid unnecessary jargon, integrate findings rather than listing scores, and be respectful. Feedback sessions give clients the chance to understand, question and use results. Consent governs who receives the report.
Worked example: From jargon to clarity Original, fictional
Jargon: 'Pt. evidences significant ego-dystonic dysphoria with marked psychomotor retardation and impaired executive functioning.' Clear: 'Ms. S. describes feeling persistently low and does not like feeling this way. She moved and spoke slowly during our meetings, and on tasks requiring planning and switching between steps she found it harder than most people her age.'
Interactive activity
Report-writing practice
Rewrite or respond, then compare with the model answer. Use only the fictional details given.
1 Rewrite: 'Client is non-compliant and manipulative.'
Compare with a model answer
Describe observable behaviour and context instead: 'Mr. K. attended three of six appointments and said he found the timing difficult because of work. He asked on two occasions for the letter to be changed to say he was unable to work.' Judgemental labels obscure information and harm the relationship.
2 A report lists ten test scores one after another. What would improve it?
Compare with a model answer
Organise findings by question or domain, integrate scores with history and observations, explain what the pattern means for daily life, and acknowledge uncertainty.
3 Write one specific recommendation for a student with slow processing speed and anxiety about exams (fictional).
Compare with a model answer
For example: 'Consider additional time in examinations, provided through the college's accommodation procedure, alongside brief sessions focused on exam-anxiety management; review after one semester.'
Knowledge check
4 questions. Every option has an explanation. Your answers are not sent anywhere when JavaScript is available; without it, they are checked by the server and immediately discarded.
Summary
- Clinical judgement is vulnerable to predictable biases.
- Actuarial methods often match or beat unaided judgement for specific predictions.
- Integrated reports answer the referral question, integrate data and acknowledge limits.
- Clear, respectful language and consent-based sharing are essential.
Questions for reflection
- How would you check whether your own clinical predictions are accurate over time?
Key terms
Further reading
- Textbook Plante, T. G. (2005). Contemporary clinical psychology (2nd ed.). John Wiley & Sons.
- Further reading Groth-Marnat, G., & Wright, A. J. Handbook of psychological assessment (latest edition). Wiley.
Practise in the case lab: Mr. Farooq: forgetfulness and withdrawal after a bereavement · Rohan: a nine-year-old whose teacher says he 'never listens'