01 · The Question
What if every word is translated correctly but the participant still misunderstands what is happening?
Imagine explaining randomization to someone who has never encountered the idea of a clinical trial. Or asking someone to sign a research consent form when their previous interactions with professionals have involved treatment, government services, education, or humanitarian assistance rather than research.
The words may be translated perfectly. The participant may even repeat them back. Yet they may still believe the researcher is recommending the intervention personally, that participation is necessary to receive services, or that the study exists primarily to benefit them.
This exposes an important limitation of translation: linguistic equivalence does not necessarily produce conceptual understanding. Sometimes the problem is not how to translate the word "research." The problem is explaining what research means in this particular situation.
03 · What You Need to Know
Understanding the language is not the same as understanding the research
Translation answers "What do these words mean?" but consent asks a larger question
A translated consent form can make information linguistically accessible. That is essential when participants do not adequately understand the source language. But consent also depends on the participant's mental model of what is happening.
The current Declaration of Helsinki requires prospective participants in medical research to be informed in plain language about the aims, methods, anticipated benefits, risks and burdens, funding, conflicts of interest, privacy and confidentiality protections, incentives, compensation for research-related harm, and other relevant aspects. It also requires that participants be informed that they may refuse or withdraw without reprisal.
Those requirements presuppose more than recognition of translated vocabulary. Participants need enough conceptual understanding to interpret what those facts mean for the decision in front of them.
Linguistic understanding
The participant understands the words, sentences, and expressions used to communicate the study.
Conceptual understanding
The participant understands what the research activity means, how it differs from other activities they know, and what the information implies for their own participation decision.
First establish that the participant understands that this is research
In some settings, participants may encounter researchers through hospitals, schools, community organizations, government programs, or humanitarian services. Familiar institutional roles can shape what people assume is happening.
A patient may assume that every procedure proposed by a clinician is intended to optimize their individual treatment. A student may assume that a university activity is compulsory. A recipient of assistance may worry that refusing a study could jeopardize services. These interpretations cannot be corrected merely by replacing English words with their equivalents in another language.
Researchers may need to state explicitly that the activity is being conducted to answer a research question, explain what is being done for research rather than ordinary care or service delivery, and clarify what will and will not happen if the person refuses.
Therapeutic misconception is one example of conceptual misunderstanding
In clinical research, a prospective participant may understand every individual procedure yet believe that the study is designed primarily to choose whatever is medically best for them personally. This is commonly discussed as therapeutic misconception.
The distinction can be especially important in randomized or early-phase studies. Researchers should explain which decisions are made according to the research protocol, what remains individualized clinical care, and what benefits are uncertain.
Watch Out
A consent form can accurately state that an intervention is experimental while the surrounding conversation, setting, or professional relationship still leads the participant to interpret it as recommended treatment. Check the participant's understanding of the research purpose rather than assuming the translated label "research" has done the work.
Unfamiliar concepts should be explained, not merely transliterated
Some research terminology may lack a familiar equivalent in the participant's language. Other terms may have literal equivalents but little practical meaning to people who have never encountered the underlying practice.
Consider randomization. Replacing the English word with a technically correct local term may accomplish little if the participant still assumes that a doctor or researcher will personally choose their group. An explanation such as assignment by chance, followed by an appropriate example or demonstration, may communicate the concept more effectively.
When a research concept has no direct linguistic equivalent, the aim should be conceptual fidelity rather than forced word-for-word correspondence.
Examples and analogies can help, but they can also distort
Researchers may use familiar examples to explain an unfamiliar process. A random draw might help illustrate chance allocation. A locked cabinet might help explain one aspect of restricted access to information. These analogies can make abstract ideas concrete.
But analogies are never the concept itself. A familiar comparison may introduce assumptions that do not apply to the study. Describing randomization as "like a lottery," for example, could unintentionally suggest prizes or favorable outcomes. Describing confidentiality as "a secret" could imply stronger protection than the study can actually guarantee.
Use examples to clarify a concept, then return to what actually happens in the research.
Check the participant's model of the study, not their memory of the form
A comprehension question such as "What is the purpose of this study?" is often more revealing than asking participants to recall a sentence from the consent document. Similarly, asking "How will it be decided which group you enter?" may reveal whether randomization has been understood.
Useful questions depend on the study, but they often probe distinctions that matter to the decision:
- Why is the study being done?
- Which procedures are being done because you are in the research?
- How is your treatment or study group chosen?
- Is the research intervention known to help you personally?
- What happens to your ordinary care or services if you decide not to participate?
- Can you stop participating later?
If the participant's answer reveals a misconception, the appropriate response is usually further explanation followed by another check of understanding. Consent should be conversational enough to discover errors before they become signatures.
Community engagement can improve communication without replacing individual consent
When researchers work in communities where formal research is unfamiliar, consultation with community members can help identify confusing terminology, local expectations, trusted communication channels, and assumptions that outsiders might otherwise miss.
CIOMS recognizes community engagement as relevant across the research process and emphasizes respect for the values, culture, traditions, and social practices of participating communities. Such engagement can help researchers design information that makes sense locally rather than simply importing a consent script written elsewhere.
But community engagement and individual informed consent serve different functions. The Declaration of Helsinki states that although consultation with family members or community representatives may be appropriate, an individual capable of giving informed consent may not be enrolled unless that person freely agrees.
Questions about whether community or family approval can be required in addition to individual consent therefore need to be separated from the participant's own decision.
Cultural sensitivity should not become cultural stereotyping
Researchers should take local social practices seriously without assuming that every person in a community shares identical beliefs, preferences, or decision-making styles. Statements such as "people in this culture decide as families" can conceal substantial variation by age, gender, education, socioeconomic position, migration history, religion, and personal preference.
A culturally responsive consent process may invite family discussion when the participant wants it, allow appropriate time for consultation, use locally intelligible explanations, and respect legitimate community processes. It should not presume that an individual's preference can be inferred from membership in a cultural group.
Voluntariness may need to be explained concretely
The word "voluntary" can be translated accurately without conveying what refusal actually means. This is especially important where researchers or recruiting institutions possess authority, provide scarce services, employ participants, teach students, or control access to resources.
Instead of relying solely on an abstract statement that participation is voluntary, explain the practical consequence of saying no: whether ordinary treatment continues, grades are unaffected, services remain available, or another relevant relationship remains unchanged, provided those statements are factually true.
How cultural expectations affect whether consent is genuinely voluntary is therefore related to, but broader than, the problem of translating the consent document.
The goal is adaptation without alteration
Researchers may need to change how they explain the study, but not the material facts participants are entitled to know. A culturally familiar explanation should not minimize risk, exaggerate benefit, conceal uncertainty, or suggest that refusal is socially inappropriate.
The ethics committee or IRB should be informed of substantive adaptations to the consent process. If explanatory scripts, visual materials, videos, or other aids will routinely be used, they may need review as part of the participant-facing consent materials under the applicable institutional procedure.
07 · A Quick Checklist
Before seeking consent where research may be unfamiliar
Before asking for a participation decision, check:
Determine whether prospective participants are familiar with the basic idea and purpose of research.
Identify assumptions participants may bring from healthcare, education, government, employment, or service relationships.
Explain explicitly which activities are being performed for research and how they differ from ordinary care or services where relevant.
Explain unfamiliar concepts such as randomization, experimental interventions, data reuse, or confidentiality rather than relying on translated terminology alone.
Use examples or visual aids carefully and verify that they do not introduce misleading implications.
Ask participants to explain important aspects of the research in their own words.
State concretely what happens if the person refuses or later withdraws, especially where researchers or institutions hold authority or provide valued services.
Use community consultation to improve communication when appropriate without allowing community approval to substitute for individual consent.
Submit substantive consent aids or adaptations for ethics review when required by the applicable procedure.