Multiple Case-Based Ethnography — Comparative Ethnographic Research Across Sites
Multiple Case-Based Ethnographic Research · Also known as: multi-site ethnography, comparative ethnography, multi-case ethnographic design, cross-case ethnography
Multiple case-based ethnography is a qualitative research design that applies sustained ethnographic fieldwork across two or more purposefully selected cases or sites and then compares the resulting thick descriptions to identify patterns, contrasts, and theoretical insights that would be invisible in a single-site study. It combines the contextual depth of ethnography with the comparative logic of multiple case study analysis.
Read the full method
Sign in with a free account to read this section.
Method map
The neighbourhood of related methods — select a node to explore.
When to use it
Use multiple case-based ethnography when the research question asks how and why a phenomenon unfolds across different contexts, and when contextual depth is essential — not just variation in outcomes. It is well suited to organisational research, educational studies, health systems research, and social anthropology where a single site would produce findings that are too local to be analytically useful. The design demands significant time and resources: plan for sustained fieldwork at each site. Do not use it when a single in-depth case is sufficient to answer the question, when resources allow only brief site visits, or when the goal is statistical generalisation — in those situations, ethnographic case study, survey research, or secondary analysis are more appropriate.
Strengths & limitations
- Generates contextually grounded findings that are analytically richer than either single-case ethnography or cross-sectional comparative surveys.
- The comparative logic allows the researcher to separate context-specific particulars from broader transferable patterns.
- Sustained fieldwork at each site produces the insider understanding needed to interpret variation accurately rather than superficially.
- Flexible enough to follow unexpected phenomena across sites, consistent with ethnography's emergent design logic.
- Well suited to studying complex social phenomena in natural settings where experimental control is impossible.
- Resource-intensive: sustained multi-site fieldwork demands substantial time, funding, and researcher stamina.
- Managing comparability across sites is challenging — differences in access, gatekeeping, and local events can make sites incomparable in ways that are only apparent late in the study.
- Findings offer theoretical rather than statistical transferability; the design cannot support probabilistic generalisation.
- Coordinating a research team across sites introduces inter-researcher consistency challenges that require explicit protocols.
Frequently asked
How many cases are needed?
Two cases is the minimum that permits any comparison, but two sites risk the analysis collapsing into a simple contrast. Three to five cases is the most common range in published multiple case-based ethnographies — enough to identify patterns while keeping the fieldwork feasible. The criterion is theoretical saturation of the comparison, not a fixed number.
How is this different from a standard multi-site ethnography?
The terms are closely related and often used interchangeably. 'Multiple case-based ethnography' foregrounds the structured case study logic — each site is treated as a bounded case with its own within-case portrait before cross-case comparison. 'Multi-sited ethnography' in Marcus's original sense emphasises following a phenomenon (an object, an idea, a practice) across sites, without necessarily treating each site as a discrete case. The distinction matters for analysis: case-based designs produce explicit cross-case matrices; Marcus-style designs follow the moving phenomenon.
Does each site need the same amount of fieldwork time?
Not necessarily equal in clock hours, but sufficiently deep at each site to produce a credible within-case portrait. If one site receives substantially less time than the others, the cross-case synthesis will be skewed — the thin site will appear simpler or more uniform than it actually is.
Can I use multiple researchers across sites?
Yes, and for large projects this is often necessary. It requires a detailed shared protocol (observation guides, interview schedules, memo formats) and regular team debriefs to ensure that different researchers are recording and interpreting phenomena consistently enough for comparison. Differences in researcher positionality should be documented and treated as data rather than noise.
How do I handle a case that turns out to be very different from the others?
A deviant or outlier case is analytically valuable, not a problem. In cross-case synthesis it becomes a negative case that helps you specify the conditions under which the main pattern does or does not hold. Rather than excluding or minimising it, interrogate why it differs — those reasons are often the most theoretically productive finding of the study.
Sources
- Stake, R. E. (2006). Multiple Case Study Analysis. Guilford Press. ISBN: 978-1593852481
- Marcus, G. E. (1995). Ethnography in/of the world system: The emergence of multi-sited ethnography. Annual Review of Anthropology, 24, 95–117. DOI: 10.1146/annurev.an.24.100195.000523 ↗
How to cite this page
ScholarGate. (2026, June 3). Multiple Case-Based Ethnographic Research. ScholarGate. https://scholargate.app/en/qualitative/multiple-case-based-ethnography
Which method?
Set this method beside its closest kin and read them side by side — the library lays the books on the table; the choice is yours.
- Case StudyQualitative↔ compare
- Comparative Case StudyQualitative↔ compare
- EthnographyQualitative↔ compare
- Grounded TheoryQualitative Research↔ compare
- Thematic AnalysisQualitative Research↔ compare