Manuel B. Garcia

Manuel B. Garcia serves as the Senior Director for Educational Technology and Digital Learning at FEU Institute of Technology, Manila, Philippines. Read More

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Should People Who Know Each Other Be in the Same Focus Group?

Participants who already know one another can bring shared context and natural interaction to focus groups, but existing relationships may also constrain disagreement and disclosure. Learn when familiar groups are appropriate, how to assess relational risks, and when recruiting strangers or separating participants may be preferable.

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Focus Group Participants Who Know Each Other Guide 493 of 1272
01 · The Question

Is It Better to Recruit Focus Group Participants Who Already Know One Another?

You are planning a focus group involving university teachers who work in the same department. They already know one another, attend meetings together, and have discussed many of the institutional issues your study seeks to investigate.

At first, this seems advantageous. Participants may feel comfortable, understand one another's experiences, and develop a lively discussion without extensive introductions.

But what happens when the conversation concerns disagreement with departmental decisions, professional difficulties, or practices that colleagues may judge negatively? Will participants speak openly, or will they protect existing relationships?

Some researchers prefer strangers because they assume participants will feel less socially constrained. Others deliberately recruit established groups because their everyday relationships are central to the phenomenon.

The appropriate choice depends on what the research seeks to understand and how existing relationships may shape the evidence.

02 · The Short Answer

Existing Relationships Can Be an Advantage or a Methodological Risk

In Brief

People who already know one another can participate in the same focus group when their shared relationships support the research purpose and the potential risks are acceptable. Familiarity may facilitate contextual understanding and discussion of shared practices, but it can also create pressure to conform, discourage disagreement, and increase the consequences of disclosure.

Researchers should not automatically exclude acquaintances or assume that familiar participants will be more comfortable. Instead, assess the nature of their relationships, the sensitivity of the topic, existing authority differences, and whether the study seeks to understand interaction within a naturally occurring group.

03 · What You Need to Know

How Pre-Existing Relationships Shape Focus Group Data

What Is a Pre-Existing or Naturally Occurring Focus Group?

A pre-existing focus group includes participants who have relationships outside the research session. They may be colleagues, classmates, friends, members of a professional association, or participants in the same community organization.

A naturally occurring group is one whose members ordinarily interact as part of their social or institutional lives.

For example, a teaching team that regularly collaborates on course design may constitute a naturally occurring group. Recruiting that team for a discussion allows the researcher to examine interaction among people who already share a working relationship.

However, the research session remains a constructed setting. Participants know they are being studied, the moderator influences the discussion, and the topics may differ from those ordinarily discussed.

Researchers should therefore avoid claiming that a focus group reproduces everyday interaction exactly.

Why Might Familiarity Improve Group Discussion?

Participants who know one another may share language, experiences, and contextual knowledge that support detailed discussion.

For example, teachers from the same department may refer to particular institutional procedures without needing to explain the entire organizational background.

One participant may remind another of a relevant event, challenge an interpretation, or provide additional context.

Kitzinger (1995) identifies interaction as an important feature of focus group research, including how participants question one another and draw on shared understandings.

Existing relationships may make these interactions especially informative when the research concerns collective practices.

Nevertheless, shared familiarity does not guarantee productive discussion. Some groups may rely on implicit understandings that remain unexplained to the researcher.

Familiar Participants May Use Shared Knowledge Without Explaining It

Existing groups often communicate through references that are meaningful to members but unclear to outsiders.

For example, a participant may say, "That was exactly what happened during the assessment review," prompting laughter or agreement from colleagues.

Without clarification, the researcher may not understand which event is being discussed or why it matters.

The moderator should ask participants to explain relevant references rather than assuming that agreement establishes a shared interpretation.

However, clarification should be proportionate. Repeatedly interrupting familiar interaction may disrupt the very processes the study seeks to examine.

The analytical objective determines how much contextual explanation is necessary.

Existing Relationships Can Discourage Disagreement

Participants may hesitate to challenge people with whom they must continue working or studying.

For example, a teacher may privately disagree with colleagues about generative AI use but avoid expressing that disagreement during a departmental focus group.

The participant may wish to preserve professional relationships, avoid appearing confrontational, or prevent future misunderstandings.

These concerns can influence the discussion even when no formal hierarchy exists.

Researchers should therefore distinguish apparent agreement from evidence of genuine consensus.

Silence may reflect agreement, uncertainty, reluctance, or a decision not to participate in a particular exchange.

Friendship Does Not Automatically Produce Greater Honesty

Friends may feel comfortable discussing some topics because they trust one another.

However, friendship can also create expectations of loyalty and mutual protection.

Participants may avoid revealing experiences that contradict how their friends perceive them or that could place others in an uncomfortable position.

For example, students discussing collaborative academic writing may hesitate to acknowledge disagreements about AI use when their project partners are present.

The relationship may support discussion of general practices while restricting disclosure of personally consequential experiences.

Researchers should not equate familiarity with unrestricted openness.

How Do Acquaintances Compare with Strangers?

Consideration Participants who know one another Participants who are strangers
Shared context May have substantial common knowledge May require more contextual explanation
Initial interaction May draw on established conversational relationships Must establish interaction during the session
Disagreement May be shaped by ongoing relationships May be less constrained by future contact, but still socially influenced
Confidentiality Members may recognize experiences and third parties Members may have less prior identifying knowledge
Social expectations Existing roles and reputations may influence responses Expectations may develop during the discussion
Analytical contribution Can illuminate established relationships and shared practices Can illuminate interaction among people brought together for research

Neither arrangement eliminates social desirability, unequal participation, or group influence. The differences concern the social conditions in which participants generate their accounts.

When Are Naturally Occurring Groups Especially Useful?

Pre-existing groups may be particularly appropriate when the research question concerns how people collectively interpret or negotiate practices within an established setting.

For example, a researcher studying how instructional design teams negotiate decisions about AI-generated learning materials may benefit from discussing these decisions with members who regularly collaborate.

Participants can refer to shared procedures, explain disagreements, and respond to one another's interpretations.

The resulting discussion may reveal aspects of professional coordination that would be less visible through interviews with unrelated individuals.

However, the researcher should recognize that a moderated discussion differs from observing actual workplace decisions.

If the research concerns what team members do rather than how they describe their practices, observation may provide complementary evidence.

When Might Recruiting Strangers Be Preferable?

Recruiting participants without established relationships may be preferable when familiarity creates foreseeable social risks.

For example, a study investigating students' perceptions of academic integrity may benefit from separating students who collaborate closely or share assessment responsibilities.

Participants may be more willing to discuss general experiences when they do not expect to encounter other group members regularly.

However, strangers may still fear judgment or become reluctant to disagree.

They may also have difficulty discussing issues requiring substantial shared contextual knowledge.

The decision should therefore be justified by the research question and disclosure conditions rather than an assumption that unfamiliarity guarantees candor.

How Do Existing Relationships Affect Confidentiality?

Confidentiality is a major concern when participants know one another.

Researchers can protect recordings, transcripts, and identifiable information under their control. They cannot fully control what participants remember or disclose outside the session.

For example, a teacher who describes a disagreement with a department head may be identifiable to colleagues even if no names appear in the transcript.

Existing relationships can make indirect identification easier because participants already know relevant events and circumstances.

Researchers should explain these limitations before consent and avoid promising absolute confidentiality among group members.

Ground rules may request that participants respect privacy, but they do not create enforceable guarantees that information will remain within the group.

Should Participants Be Asked to Keep the Discussion Confidential?

Yes, establishing confidentiality expectations may be appropriate, particularly when the discussion concerns personal or institutional experiences.

The moderator can explain that participants should not repeat identifiable accounts outside the session.

However, researchers should distinguish an expectation from a guarantee.

Participants may misunderstand the boundaries of confidentiality or disclose information despite agreeing to group rules.

For this reason, highly sensitive research may be unsuitable for focus groups regardless of the participants' willingness to accept confidentiality expectations.

The decision about whether focus groups are appropriate for sensitive topics should be made before recruitment.

Existing Power Relationships May Be More Important Than Familiarity

Not all pre-existing relationships involve equal authority.

Teachers may know one another as colleagues while also occupying supervisory and subordinate positions.

Students may be classmates while holding different leadership roles or having unequal influence within a project team.

Such differences can shape whose accounts are challenged, whose statements are accepted, and who remains silent.

Researchers should examine how power differences affect focus group data rather than treating familiarity as the primary concern.

When direct reporting relationships exist, separating managers and employees may be more appropriate than combining them in a single discussion.

Can Participants Who Know One Another Still Be Considered Homogeneous?

Yes, but familiarity and homogeneity describe different characteristics.

Homogeneity concerns similarity on dimensions relevant to the research, such as professional role, experience, or institutional context.

Familiarity concerns whether participants have existing relationships.

A group of teachers from different universities may be homogeneous by professional role while consisting entirely of strangers.

Conversely, a university committee may contain familiar members occupying different professional positions.

The decision about homogeneous or heterogeneous group composition should therefore be considered separately from whether participants already know one another.

How Can the Moderator Manage Established Group Roles?

Pre-existing groups may bring familiar patterns of conversation into the research session.

Some members may routinely lead discussions, while others may defer or speak only after being invited.

The moderator should recognize these patterns without assuming they are fixed personality characteristics.

Open invitations, neutral follow-up questions, and opportunities for varied contributions may help prevent one established role from dominating the session.

However, the moderator should not pressure quiet participants to reveal experiences they prefer to keep private.

Strategies for managing dominant and quiet participants should be adapted to the group's existing relationships.

Should the Researcher Ask About Participants' Relationships?

Researchers may need sufficient information about existing relationships to assess group composition and interpret the discussion.

For example, it may be important to know whether participants work in the same department, collaborate on projects, or have supervisory relationships.

However, collecting detailed information about friendships, conflicts, or personal relationships may be unnecessary and intrusive.

The researcher should identify only the relational characteristics relevant to the research purpose and ethical assessment.

Such information should be handled confidentially and reported without unnecessarily exposing participants' identities.

Can Existing Groups Be Used to Study Collective Decision-Making?

Yes, particularly when the research concerns how an established group discusses or interprets decisions.

For example, a focus group involving an instructional design committee may reveal how members explain their approaches to evaluating AI-generated materials.

However, a research discussion about decision-making is not equivalent to observing decisions being made during ordinary institutional activities.

Participants may reconstruct past events, emphasize particular considerations, or present a coordinated account.

Researchers should distinguish reported decision-making from directly observed behavior.

When actual interactional practices are central, observation or analysis of relevant organizational records may complement focus group data.

What If Participants Have Conflicts Outside the Research?

Existing disagreements can influence focus group participation.

Some conflicts may generate analytically useful discussion, while others may create discomfort, hostility, or risks of retaliation.

Researchers should not deliberately place participants in potentially harmful interactions simply to produce disagreement.

Where serious conflicts or authority differences are known, separate groups or individual interviews may be more appropriate.

The researcher should consider whether the discussion can proceed respectfully and whether the anticipated interaction is necessary for answering the research question.

Participant welfare should not be subordinated to the pursuit of dramatic group exchanges.

How Should Existing Relationships Be Considered During Analysis?

Focus group accounts should be interpreted in relation to the social conditions under which they were produced.

For example, agreement among long-standing colleagues may reflect shared experience, established norms, or reluctance to challenge one another.

Similarly, disagreement may reflect genuine differences in interpretation or pre-existing organizational tensions.

The researcher should avoid attributing motives without evidence.

Analytical notes may document relevant relationships, interaction patterns, and circumstances that help explain how particular contributions emerged.

However, familiarity should not become an automatic explanation for every instance of agreement or silence.

How Should Familiarity Be Reported in the Methodology?

The methods section should explain whether participants had existing relationships and why that arrangement was selected.

Researchers may describe groups as established teaching teams, departmental colleagues, or participants recruited independently from several institutions.

Where familiarity may influence disclosure or interaction, explain how those implications were considered.

Reporting should also address relevant confidentiality safeguards and the limits of those protections.

The purpose is to make the social conditions of data generation transparent without unnecessarily identifying participants or exposing their relationships.

04 · A Practical Example

Deciding Whether Departmental Colleagues Should Join the Same Focus Group

Hypothetical Example

Investigating How Teachers Discuss Generative AI Assessment Policies

A researcher wants to understand how university teachers interpret a new institutional policy governing generative AI in student assessments.

Potential participants include teachers who regularly collaborate within the same department. Some also have supervisory relationships.

Step 1: Clarify the research objective

The study seeks to understand how teachers collectively interpret the policy and negotiate expectations during professional discussion. Existing collaborative relationships may therefore contribute relevant evidence.

Step 2: Assess relationship-related risks

The researcher identifies that some teachers report directly to other potential participants. Because the discussion may include criticism of institutional procedures, these relationships could discourage open contributions.

Step 3: Plan the composition

Teachers who collaborate as peers may participate together when appropriate. Participants with direct supervisory relationships are allocated to separate discussions to reduce foreseeable hierarchical pressure.

Step 4: Explain confidentiality limitations

Before consent, participants are informed that colleagues will hear their contributions and that the researcher cannot guarantee what others will disclose outside the session.

Step 5: Facilitate established-group interaction

The moderator encourages participants to explain shared references and invites alternative interpretations without forcing disagreement. Established conversational roles are monitored.

Step 6: Interpret the findings contextually

The analysis considers how shared departmental experience shaped the discussion. Apparent agreement is not automatically interpreted as evidence that all teachers hold the same view.

Including familiar participants is defensible because existing professional interaction is relevant to the study. Separating supervisory relationships helps address a different concern: whether participants can contribute without inappropriate pressure.

05 · What Researchers Often Get Wrong

Common Misconceptions About Familiar Focus Group Participants

Misconception

Focus Group Participants Must Always Be Strangers

Pre-existing groups can be appropriate when shared relationships contribute to the research question. Familiarity should be evaluated rather than automatically prohibited.

Misconception

Friends Always Speak More Honestly Together

Friendship may support comfort but can also create expectations of loyalty, conformity, or discretion. Greater familiarity does not guarantee greater candor.

Misconception

Strangers Are Unaffected by Social Desirability

Participants who do not know one another may still seek approval, avoid disagreement, or present themselves favorably. Unfamiliarity does not eliminate group influence.

Misconception

Confidentiality Ground Rules Guarantee Privacy

Researchers can establish expectations but cannot fully control what participants disclose outside the session. Existing relationships may make indirect identification especially likely.

Misconception

Participants Who Know One Another Will Naturally Agree

Familiar groups may contain substantial disagreement. Conversely, apparent agreement may reflect social expectations rather than identical interpretations.

Misconception

Existing Relationships Are Irrelevant Once the Discussion Is Recorded

Relationships can shape participation, disclosure, disagreement, and silence. They remain relevant to interpreting the evidence generated during the session.

06 · What This Means for You

How to Decide Whether Familiar Participants Should Be Grouped Together

Begin by determining whether existing relationships are analytically relevant or primarily a practical recruitment circumstance.

Then assess how those relationships may affect discussion, confidentiality, and participants' freedom to contribute.

A simple decision framework

If the study examines established team practices or shared interpretations
Consider naturally occurring groups when existing relationships contribute relevant interactional evidence.
If participants know one another but have no substantial authority differences
Assess the topic's sensitivity and whether familiarity supports or restricts meaningful discussion.
If participants have direct supervisory or evaluative relationships
Consider separate groups or individual interviews to reduce foreseeable pressure.
If disclosure could damage ongoing personal or professional relationships
Consider recruiting unrelated participants or using individual interviews with appropriate safeguards.
If shared references dominate the conversation
Use neutral clarification prompts to make relevant meanings understandable for analysis.
If the study includes both familiar and unfamiliar groups
Document the differences and consider how they influence interaction and interpretation.

The choice should not be reduced to a preference for natural conversation or presumed anonymity among strangers.

Researchers should select the arrangement that supports the intended evidence while minimizing unnecessary relational risks.

07 · A Quick Checklist

Check Existing Relationships Before Forming Focus Groups

Before placing acquaintances or colleagues together, check:
Determine whether participants' existing relationships are relevant to the research question.
Identify the nature of relevant relationships without collecting unnecessary personal information.
Assess whether familiarity may support contextual understanding and meaningful interaction.
Consider whether ongoing relationships may discourage disagreement or sensitive disclosure.
Identify direct supervisory, evaluative, or other unequal authority relationships.
Explain the limits of confidentiality among group members before consent.
Evaluate whether strangers, separate groups, or individual interviews would be more appropriate.
Prepare moderator strategies for established conversational roles and implicit shared references.
Consider existing relationships when interpreting agreement, disagreement, and silence.
Report the group composition and relevant relational context without compromising identities.
08 · Frequently Asked Questions

Frequently Asked Questions About Participants Who Know One Another

Can friends participate in the same focus group?

Yes, when their relationship is compatible with the research purpose and disclosure risks are acceptable. Friendship may support discussion but can also influence conformity, disagreement, and confidentiality.

Should focus group participants be strangers?

Not necessarily. Strangers may reduce some concerns about ongoing relationships, while familiar participants may provide useful shared context. Neither arrangement is universally preferable.

Can coworkers be placed in the same focus group?

Yes, but researchers should examine professional relationships, topic sensitivity, and authority differences. Direct supervisory relationships may justify separate groups.

What is a naturally occurring focus group?

It involves people who already interact outside the research setting, such as an established team or community group. Their existing relationships may contribute relevant evidence about shared practices and interpretations.

Are familiar participants more likely to agree?

Not necessarily. Familiarity may support disagreement or encourage conformity, depending on relationships and social expectations. Expressed agreement should be interpreted contextually.

Can confidentiality be guaranteed when participants know one another?

No. Researchers can protect information under their control and establish confidentiality expectations, but cannot fully prevent participants from repeating information outside the group.

Can I combine familiar and unfamiliar participants in one focus group?

Yes, when the composition is justified and the potential interactional consequences are considered. Existing subgroups may influence who participates and whose interpretations receive attention.

Should I report that participants already knew one another?

Yes, when existing relationships are relevant to the methodology or interpretation. Describe the relational context without unnecessarily identifying participants.

09 · The Bottom Line

Existing Relationships Should Serve the Research, Not Be Ignored

The Bottom Line

Focus group participants may know one another when their shared relationships support the research purpose and the associated risks are appropriately managed. Familiarity can enrich interaction, but it can also constrain disclosure, disagreement, and confidentiality.

Assess the nature of existing relationships, distinguish peer familiarity from authority differences, and interpret group discussion within its social context. The relevant question is not simply whether participants know one another, but what those relationships make possible or difficult during the research.

10 · Sources and Further Reading

Scholarly Sources on Pre-Existing Groups and Focus Group Interaction

11 · Cite this Guide

How to Cite This Guide

This guide is intended to be read, shared, and used in research, teaching, and academic work. If you draw on its ideas, explanations, or other content, please acknowledge the source by citing the guide. Doing so gives appropriate credit and helps your readers locate the original resource.

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