Observation in Research: Participant, Structured, Overt and Covert
Reviewed by Prof. Dr. Alexander Holtermann · Updated 16 October 2026 · 5 min read
Observation means systematically watching and recording behavior in its setting. Key choices: participant or not, structured or not, overt or covert.
Key takeaways
- Observation captures what people actually do, not what they say they do, which makes it a strong complement to surveys and interviews.
- Three key decisions: participant vs non-participant, structured vs unstructured, overt vs covert. Each combination fits different questions.
- Structured observation uses a coding scheme and yields numbers (quantitative); unstructured observation produces field notes (qualitative, often ethnographic).
- The observer effect (people change behavior when watched) is the main threat to validity; it usually fades with time and familiarity.
- Covert observation raises serious ethical issues and needs strong justification and explicit ethics approval.
What is observation as a research method?
Observation is the systematic watching, listening to and recording of behavior, interactions and settings. It differs from everyday watching in three ways: it follows a research question, it is planned, and it is documented in a way others can follow.
Observation is valuable whenever there is a gap between what people say and what they do. Teachers may report giving all students equal attention; an observation of who gets called on may show something different. It is also the method of choice when participants cannot easily report on their behavior, for example young children or routine actions people are not aware of.
Types of observation
Observation designs vary along several dimensions. Describe your choice on each in your methods chapter.
| Dimension | Option A | Option B |
|---|---|---|
| Researcher role | Participant: you take part in the activity | Non-participant: you watch from outside |
| Degree of structure | Structured: predefined categories and coding sheet | Unstructured: open field notes |
| Openness | Overt: participants know they are observed | Covert: participants do not know |
| Setting | Natural (field): classroom, ward, workplace | Artificial (lab): controlled conditions |
| Who is observed | Others (external observation) | Oneself (self-observation, e.g. diaries) |
Observer roles (Gold, 1958)
A classic typology by Raymond Gold distinguishes four roles along a continuum from full participation to pure observation. Most student projects use one of the middle roles.
| Role | Description | Example |
|---|---|---|
| Complete participant | Fully involved, identity as researcher hidden | Working as a barista while secretly studying café culture |
| Participant-as-observer | Involved, research role known to the group | Joining a student society for a term as an open researcher |
| Observer-as-participant | Mainly observing, brief interactions | Sitting in on team meetings, occasional short chats |
| Complete observer | No interaction | Observing behavior in a library from a distance |
Structured observation: building a coding scheme
In structured observation you define in advance what you will record, how and when. A coding scheme lists categories that are mutually exclusive and clearly defined, with examples. Sampling can be by time (e.g. record what happens every 30 seconds) or by event (record every instance of a behavior).
- Define each category with an inclusion rule and an example.
- Train observers and pilot the scheme in one or two sessions.
- Check agreement between observers on a subset.
- Report frequencies, rates per hour and agreement statistics.
Unstructured observation and field notes
In qualitative and ethnographic observation, you record what you see and experience in detailed field notes. Separate description from interpretation: write what happened, then your reflections in a separate column or marked section.
- Jotted notes during or right after the observation: key words, quotes, times.
- Full field notes the same day: detailed description of setting, people, actions, conversations.
- Analytic memos: first interpretations, questions, ideas for the next session.
- Reflexive notes: your own feelings, role and possible influence on the situation.
Validity: the observer effect and other problems
People often behave differently when they know they are being watched, an effect sometimes called reactivity. Reduce it by spending time in the field before recording data, being unobtrusive and observing over several sessions. Other threats include selective perception (seeing what you expect), going native in long participant observation (losing critical distance) and fatigue in long sessions. Combine observation with interviews or documents to triangulate.
Ethics: overt vs covert observation
Overt observation requires informed consent from those observed, or at least from gatekeepers and those directly involved, depending on the setting. Covert observation deceives participants and is only acceptable in exceptional cases, for example when open observation would make the research impossible and the topic has high public interest, and only with explicit ethics approval. Observing in public spaces still raises questions about privacy and recording. Never record audio or video without consent. Your university’s research ethics committee, or IRB in the US, will decide; their guidelines and your department’s rules take precedence.
Analysis and tools
Structured observation data are analyzed statistically (frequencies, comparisons, agreement statistics). Field notes are analyzed qualitatively, for example with thematic analysis. At /codieren you can code field notes like interview transcripts and keep your coding scheme with definitions and examples. The methods tool helps you decide whether observation fits your question. Upload your university’s guidelines to Professor Digital and the advice is tailored to them.
Frequently asked questions
What are the main types of observation in research?
Participant vs non-participant, structured vs unstructured, overt vs covert, and natural vs artificial settings. Most studies combine one option from each dimension.
What is participant observation?
A qualitative method in which the researcher takes part in the activities of the group being studied while observing and taking field notes, typical of ethnography.
What is the difference between structured and unstructured observation?
Structured observation records predefined categories with a coding scheme and produces numbers. Unstructured observation records open field notes and produces qualitative data.
Is covert observation ethical?
Only in exceptional, well-justified cases with explicit ethics approval, because participants cannot consent. In student research it is rarely approved.
What is the observer effect?
People change their behavior because they know they are being observed. Longer presence in the field, unobtrusive observation and triangulation reduce it.
Sources and further reading
- Clark, T., Foster, L., Sloan, L., & Bryman, A. (2021). Bryman’s Social Research Methods (6th ed.). Oxford University Press.
- Creswell, J. W., & Creswell, J. D. (2023). Research Design: Qualitative, Quantitative, and Mixed Methods Approaches (6th ed.). Sage.
Your university’s examination regulations and style guide always take precedence.
Related articles
- Case study researchA case study examines one or a few cases in depth and in their real-life context, using several data sources. Yin and Stake define the main approaches.
- Inter-rater reliabilityInter-rater reliability shows how consistently two or more coders apply the same codes. Cohen’s kappa corrects for chance; κ above 0.60 is usually acceptable.
- Research ethicsResearch with people needs informed consent, ethics approval (IRB in the US, ethics committee in the UK/EU) and data protection that meets the GDPR.
- Quantitative vs qualitativeQuantitative research measures and tests hypotheses with numbers; qualitative research explores meanings with words. Your research question decides.
- Thematic analysisThematic analysis finds patterns of shared meaning (themes) in qualitative data. Braun and Clarke describe six recursive phases from familiarisation to report.