Bracketing is a technique in qualitative research where you deliberately identify and set aside your personal assumptions, beliefs, and prior knowledge so they don’t distort how you collect or interpret data. The concept originated in philosophy and is most closely associated with phenomenological research, but it’s now used across many qualitative approaches. Think of it as putting your existing understanding of a topic in parentheses so you can see participants’ experiences on their own terms, rather than through the lens of what you already think you know.
Philosophical Origins of Bracketing
Bracketing traces back to the German philosopher Edmund Husserl, who used the Greek term “epoché” (meaning abstention) to describe the act of suspending one’s natural assumptions about the world. For Husserl, the goal was to strip away everything you take for granted about reality so you could examine pure experience itself. He described this as “putting out of action” your everyday beliefs, essentially behaving as though you are no longer embedded in the world you’re studying.
Husserl’s version was ambitious. He wanted researchers to reach a kind of transcendental awareness where they could describe the essential structures of an experience without any contamination from personal or cultural bias. In practice, this meant temporarily suspending not just opinions about a topic, but deeper assumptions about how the world works. Over time, researchers in applied fields adapted and softened this idea considerably, creating versions of bracketing that are more practical and less philosophically radical.
How Bracketing Works in Practice
In a research context, bracketing involves two ongoing forms of engagement. The first is the well-known step: identifying your assumptions about the topic and temporarily setting them aside before you begin collecting data. If you’re studying patients’ experiences of chronic pain, for example, you’d explicitly name what you already believe about chronic pain, what you expect participants to say, and what emotional reactions you bring to the topic. Then you’d consciously work to prevent those expectations from shaping your interview questions or your interpretation of answers.
The second form is less commonly discussed but equally important. As your understanding of the data evolves, you revisit both the raw data and your emerging interpretations, checking whether your shifting perspective has introduced new blind spots. This isn’t a one-time step at the beginning of a study. It’s a recurring process that continues through data collection, analysis, and even the careful development of language you use to describe your findings.
Researchers have described bracketing as happening in three phases: “pre” (before data collection), “in” (during interviews or observations), and “on” (after, when reflecting on what happened). Each phase requires a different kind of attention. Before an interview, you might write down your assumptions. During the interview, you actively monitor whether you’re leading the participant toward answers that confirm what you already believe. Afterward, you review whether your interpretation genuinely reflects what participants said or what you wanted them to say.
Tools for Documenting the Process
The most widely recommended tool is a reflective journal or diary. You start writing before you even finalize your research topic, recording your motivations for choosing the subject, your personal connections to it, and any assumptions you hold about socioeconomic class, race, ethnicity, gender, or other factors that could shape your perspective. As the research progresses, you continue logging your reactions, surprises, and moments where your preconceptions surface.
One researcher demonstrated how a reflective diary, structured around the concepts of reflecting “in” action (real-time awareness) and reflecting “on” action (looking back), became an effective tool for developing bracketing skills over the course of a study. The journal doesn’t just serve as a private exercise. It becomes part of the audit trail that shows readers of your research how you managed your subjectivity.
Another approach involves conducting interviews with an external colleague or mentor who can help you identify biases and preconceptions you might not recognize on your own. This is especially useful because some of your deepest assumptions are invisible to you precisely because they feel like common sense rather than opinions.
Descriptive vs. Interpretive Approaches
How strictly you apply bracketing depends on which tradition of phenomenology you’re working in. In descriptive (Husserlian) phenomenology, the goal is to suspend your preconceptions as completely as possible so you can reveal the essential structures of an experience through careful, uncontaminated description. Bracketing here is treated as a serious methodological requirement.
Interpretive phenomenology, rooted in the work of Martin Heidegger, takes a fundamentally different stance. Heidegger shifted attention from abstract description to the interpretation of existence, arguing that researchers are always already embedded in the world they study. You can’t fully step outside your own perspective because your perspective is part of what makes understanding possible in the first place. In this tradition, the researcher’s role in co-constructing meaning is acknowledged rather than eliminated. Reflexivity (critical self-examination) replaces strict bracketing, and the researcher’s prior knowledge is treated as a potential source of insight rather than purely as contamination.
Philosopher Linda Finlay described this tension as a “dialectical dance” between bracketing your preunderstandings and exploiting them as a source of deeper interpretation. Many contemporary researchers land somewhere between these two poles, using elements of both bracketing and reflexivity depending on their research questions and methodology.
How Reflexivity Relates to Bracketing
Reflexivity and bracketing are closely related but not identical. Bracketing focuses on identifying assumptions and setting them aside. Reflexivity is broader: it involves critically examining your entire positionality as a researcher, including how your identity, professional background, and social location shape every aspect of the research process. In practice, reflexivity serves as the foundation that makes meaningful bracketing possible.
A combined approach, sometimes called “reflexive bracketing,” asks researchers to do both simultaneously. You acknowledge and disclose your personal feelings and insights (reflexivity) while also actively working to prevent those feelings from dominating your interpretation (bracketing). One researcher studying anti-Black racism, for instance, achieved reflexive bracketing by maintaining a journal of personal feelings and insights about racism throughout the study, making her positionality transparent while still striving to center participants’ experiences rather than her own.
Researchers who practice reflexive bracketing often describe it as a process of self-discovery. It surfaces suppressed feelings and memories, and the level of self-awareness it requires can shift depending on the sensitivity of the issues being discussed. Setting preconceptions aside is only one dimension. The deeper work involves confronting parts of yourself you hadn’t previously examined.
Real-World Applications in Health Research
Bracketing is especially important when the researcher has professional expertise in the topic they’re studying. In health services research, for example, a nurse studying patient experiences of a condition she treats every day faces a specific challenge: her clinical knowledge and professional instincts can easily override what participants are actually telling her. One researcher described using bracketing to separate the different “hats” she wore as both a researcher and a health professional colleague, ensuring that her clinical expertise didn’t lead her to guide interviews toward clinically relevant answers rather than letting participants define what mattered to them.
This kind of role conflict is common. When health professionals conduct qualitative interviews on topics where they have expertise, they may feel a duty to provide guidance or correct misinformation, which directly conflicts with the research goal of listening without judgment. Bracketing helps delineate the boundary between the research process and clinical interactions. Combined with consistent reflective practice, it ensures that the interviewer functions as a repository for participants’ information rather than a co-creator of it.
Criticisms and Practical Challenges
The central critique of bracketing is straightforward: complete suspension of your assumptions may be impossible. Heidegger and later the philosopher Hans-Georg Gadamer argued that our preunderstandings are not optional accessories we can remove at will. They are the very structures through which we make sense of anything at all. From this perspective, claiming to have fully bracketed your assumptions is itself a kind of self-deception.
Even in educational settings, the difficulty is evident. One teacher of phenomenology observed that his students struggled to bracket judgmental views when reading a transcript of a woman who had become disillusioned with God and religion, despite having studied the concept of bracketing beforehand. The emotional and ideological dimensions of certain topics can make neutral engagement genuinely hard, not just theoretically questionable.
There’s also a notable gap in the evidence base. Despite decades of writing about bracketing and plenty of positive anecdotal accounts from researchers who found it valuable, no formal empirical investigation has been published examining whether bracketing actually improves the quality or trustworthiness of qualitative findings. The technique remains widely endorsed but largely unvalidated by the standards researchers apply to other methodological choices. Definitions, types, and procedures continue to generate debate and confusion among qualitative methodologists, with various modifications diverging significantly from the ideas of the European philosophers who introduced the concept.