Begin with the decision the NGO must make
Good baseline research is designed backwards from programme decisions. For an NGO operating in Comoros, that means defining intended participants, understanding local delivery structures, and choosing indicators that will still make sense at midline and endline. Comparing experiences in Moroni and Mutsamudu can strengthen the initial design because the two settings are not identical: the main urban centre on Grande Comore, while Mutsamudu represents a principal settlement on Anjouan.
Hold a short inception exercise before building the sample. Programme staff should explain what the intervention will deliver, when exposure begins, and which target groups could be affected first. The research team then turns vague ambitions into a limited set of testable questions. For instance, a health programme may need to distinguish awareness of a service from physical access and actual use. Keeping these constructs separate makes later comparisons more credible and ensures that resources are spent collecting evidence that can inform management.
Understand how research geography works in Comoros
Fieldwork should follow the administrative vocabulary used in Comoros: islands, prefectures and communes. These structures help researchers identify the correct boundaries, local gatekeepers and likely sources of population lists, but they do not automatically supply a complete probability sampling frame. First establish which boundaries apply to the actual programme area, then verify maps and household or facility counts. Administrative labels should be used only after checking their exact local meaning and relationship to the study population. Where islands and separated population centres shape coverage, sampling and transport budgets must treat each catchment as distinct rather than assuming a single urban team can reach all groups.
Define the target population and sampling frame
The sample plan must say what the estimates will represent. An NGO might need one estimate across programme communities, separate estimates for women and men, or a comparison of exposed and unexposed participants. These are different sample-design problems. Selection should not be delegated to interviewer convenience. Build a frame, test its completeness, document clustering and calculate practical design effects. Where populations are mobile or records outdated, conduct listing or frame verification before drawing respondents.
Baseline research in Moroni: designing the first city sample
In Moroni, where the city functions as the main urban centre on Grande Comore, a baseline might start with an inventory of programme catchments and service points. If the intervention concerns livelihoods and local employment, the field team should test measures of income sources, employment quality, seasonality and access to productive assets. Interviewer routes should deliberately cover selected neighbourhoods rather than concentrating around accessible offices and major roads. Compare the register of intended participants with people who actually use services; discrepancies may expose targeting or access problems. Whether the unit is a household, young person, facility or beneficiary must remain consistent through analysis.
Baseline research in Mutsamudu: testing a contrasting city context
Mutsamudu deserves an independent field plan because it is a principal settlement on Anjouan. Before importing the Moroni questionnaire unchanged, conduct a short cognitive pilot and verify where the target population resides, travels and receives services. The sample allocation should reflect the stated comparison question, not an arbitrary equal split made for convenience. If the NGO needs a comparison between the two cities, agree the minimum precision and subgroup coverage needed. Findings should describe the observed difference without attributing it automatically to geography or programme performance.
Build indicators that can be measured again
Treat indicator definitions as the bridge between programme claims and survey evidence. For each proposed outcome, ask whether it can be observed, self-reported or verified from records. Avoid relying on a single question when the construct has several dimensions. If measuring household resilience, for instance, clarify the time horizon and components rather than applying a generic label. Pilot response categories and translation choices. The baseline data dictionary should allow an independent analyst to reproduce the reported indicators without guessing.
Choose appropriate survey and qualitative methods
Selecting CAPI, CATI or CAWI is a coverage decision before it is a technology decision. CAPI helps where interviewers must locate households or verify assets. CATI can be efficient when phone numbers form a credible frame, but shared phones and unreachable numbers may affect who responds. CAWI works for digitally reachable populations, not automatically for everyone. Add observation and interviews with service providers when respondent accounts need contextual interpretation. Document any mixed-mode effects before combining the results.
Translate and pilot instruments for local respondents
Tools and consent scripts should be tested in Comorian, French and Arabic. A language that works for a formal meeting may not be the clearest language for a household interview, and bilingual respondents may switch vocabulary when describing sensitive experiences. Prepare a glossary for core constructs, reconcile translations with the source questionnaire and role-play difficult questions. Recruit interviewers for language competence and cultural familiarity, not only device skills. Translation changes need recorded approval so that future midline and endline rounds can preserve conceptual equivalence.
Design field operations around actual access conditions
Operationally, different islands should not be treated as interchangeable clusters. Plan interviewer assignments, transport, safe operating hours, supervision and escalation around this reality. An initial reconnaissance visit can check listing feasibility, accessibility, the actual duration of an interview and any mismatch between administrative maps and lived settlement boundaries. A rigorous pilot should include sample-selection rehearsal, consent practice, skip-logic tests and mock data submission. Budget for replacements that comply with the original selection procedure rather than allowing opportunistic substitution when a respondent is absent.
Protect consent, privacy and vulnerable participants
Respondents are more likely to give meaningful answers when they understand who is conducting the study and how information will be used. Consent should distinguish the research team from programme selection decisions and state the limits of confidentiality. Make a documented choice about collecting names, audio and GPS. Use access controls, secure transfer and deletion schedules. If the study covers minors or sensitive health topics, obtain appropriate specialist review and consent or assent procedures before recruitment.
Check quality while fieldwork is still active
The best way to improve data quality is to make failure visible early. Pilot every language version and test skip logic on actual devices. Compare early interview durations, survey routes, subgroup distributions and item nonresponse against expectations. If interviewers struggle with one translated concept, pause and correct the wording through formal version control. Independent back-checks and spot observations can verify authenticity, while clean decision logs show why any interview was excluded or repeated.
Analyse change without overstating causal claims
Turn the baseline into a measurement asset rather than a one-off report. The analyst should supply a transparent dataset, a codebook, stable indicator definitions and enough documentation to recreate every major result. Report confidence and precision where the design allows, and avoid making small subgroup differences sound definitive. The programme team should agree how baseline findings change implementation and schedule any follow-up measurements at periods that preserve comparability.
Turn baseline evidence into action in Comoros
For a hypothetical NGO programme focused on livelihoods and local employment, the useful deliverable is not simply a table showing income sources, employment quality, seasonality and access to productive assets. It is an explanation of which barriers can be addressed through the intervention and which reflect factors outside programme control. If participants know a service exists but rarely use it, explore cost, location, opening time, quality, trust and social norms. Recommend a response only when the evidence distinguishes among those explanations. The baseline should also register external shocks and programme exposure dates to protect later interpretation.
At the end of the exercise, the NGO should be able to say what the baseline means for Comoros, what it means specifically for Moroni and Mutsamudu, and what it does not mean. Set a schedule for repeating core indicators, preferably at comparable seasonal periods. Keep the sample frame, contact protocol, questionnaire versions, interview-date records and calculation syntax. Use a short management session to decide whether targeting, staffing, communication or referral practices should change. Record those decisions so the endline can examine both outcomes and the adaptation process.
What a useful baseline report should deliver
A strong Comoros baseline report should provide a clearly defined study population, an honest sampling account, accepted-interview totals, response outcomes, reproducible indicators and accessible recommendations. City comparisons should carry their own denominators and limitations. The report can be supported by a clean dataset, fieldwork memo, codebook and monitoring matrix, for internal analysis and subsequent measurement rounds. Any gaps in coverage should be visible so implementers can decide whether further listing or targeted qualitative inquiry is needed before expanding activities.
How Surveysphere Africa can support
Surveysphere Africa helps NGOs and development organisations design baseline studies, define indicators, plan samples, manage fieldwork, verify data quality and turn findings into actionable programme decisions. For work involving Moroni, Mutsamudu or wider coverage in Comoros, the research design should begin with the intended decision and the population it needs to represent, then adapt responsibly to the local context.
Related guidance
For the continent-wide view, read our guide to baseline, midline and endline studies.
Our services for research in Comoros
We run research across African markets. Start with these services for work in Comoros:
- Monitoring, evaluation and learning in Comoros: Baseline, midline, endline and programme evaluation.
- Social and development research in Comoros: Qualitative and quantitative studies for social and development programmes.
We also offer: Outsourced fieldwork, Market and consumer research, Public health research, Policy, economic and institutional research, Data analytics and insights visualisation.
