Psychological assessment
Behavioural observation, self-monitoring and checklists
Naturalistic and controlled observation, self-monitoring, checklists and inventories, physiological measures — and how to use them responsibly.
What this module draws on:
- Textbook concept Naturalistic, self-monitoring and controlled observation; checklists and inventories; physiological testing (Ch. 7).
- Original elaboration Observation-coding exercise and self-monitoring example.
- Contemporary update Current editions and licence cautions for inventories.
Learning objectives
After this module you should be able to:
- Distinguish naturalistic, controlled and self-monitoring observation.
- Write operational definitions of target behaviours.
- Explain the uses and limits of checklists and inventories.
- Describe physiological assessment methods and their role.
Introduction
Interviews tell us what people say; observation shows what they do. Checklists and inventories add efficient, standardised information. Each method has strengths and blind spots, so good assessment combines them.
Three kinds of observation Textbook concept
| Method | Description | Strength | Limitation |
|---|---|---|---|
| Naturalistic | Observing behaviour in the real environment (classroom, home) | Ecological validity | Time-consuming; observer presence changes behaviour (reactivity) |
| Controlled | Creating a situation that prompts the behaviour (role play, structured task) | Efficient; standardised | May not reflect real life |
| Self-monitoring | The client records their own behaviour, thoughts or feelings | Access to private events; promotes awareness | Compliance and accuracy vary; recording can itself change behaviour |
Operational definitions Original elaboration
Observation is only as good as its definitions. 'Aggressive' is vague; 'hits, kicks or pushes another child with enough force to move them' is observable and countable. Clear definitions improve inter-observer agreement.
Checklists and inventories Textbook concept
Brief questionnaires efficiently survey one or more problem areas. The textbook discusses the Beck inventories, the Child Behavior Checklist (CBCL) and the Symptom Checklist-90-Revised (SCL-90-R). Many have newer editions and are commercially published and copyrighted; their items are not reproduced in this lab. Freely available screens are described in the instrument catalogue with their licence status.
Physiological measures Textbook concept
Heart rate, skin conductance, muscle tension and other indicators can index arousal and are used in biofeedback. Neuroimaging is mainly a research and medical tool. The textbook mentions the polygraph; its use for detecting deception is scientifically contested and it should not be treated as a reliable 'lie detector'.
Worked example: A self-monitoring diary Original, fictional
A fictional client with panic attacks records, for each episode: date and time, situation, first physical sensation, thought at the peak, anxiety rating (0–10) and what she did. After two weeks, patterns appear: most attacks follow night shifts and strong tea, and begin with palpitations interpreted as heart trouble.
Interactive activity
Choose the observation method
Select the most suitable method for each fictional assessment question.
Knowledge check
5 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
- Observation reveals behaviour in context; definitions must be operational.
- Naturalistic, controlled and self-monitoring methods each have trade-offs.
- Checklists are efficient but must be interpreted cautiously and legally used.
- Physiological measures index arousal; the polygraph's validity is contested.
Questions for reflection
- How might your presence as an observer change a family's behaviour at home, and how could you reduce that effect?
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: Rohan: a nine-year-old whose teacher says he 'never listens' · Meera: chest pain, emergency visits and fear of dying