What Glaserian Classic Grounded Theory Researchers Read (and What They Deliberately Set Aside)

Why This Happens

Glaserian classic grounded theory (GCGT) is often summarized in a single, oversimplified line: "You do not do a literature review." It is a convenient shorthand, and it is also misleading. New researchers encountering it tend to go in one of two directions. Some overcorrect, avoiding reading of any kind of literature, including methodological literature on grounded theory itself, worried that any exposure would contaminate their objectivity. Others undercorrect, reading deeply into their specific substantive area anyway, assuming the guidance is impractical or does not really apply to their situation.

Both responses stem from the same misunderstanding: treating "delay the literature review" as "never read anything," rather than understanding it as guidance on which kinds of reading to avoid and when.

Part of what makes this confusing is that the guidance sounds counterintuitive to anyone trained in more conventional research traditions, where a thorough literature review is the expected first step and its absence can look like a shortcut rather than a deliberate methodological choice. Without a clear explanation of what is actually being protected, the rule reads as an arbitrary restriction instead of the safeguard it is meant to be.

What It Looks Like in Practice

One researcher, new to grounded theory, studying how nurse managers handle burnout among their teams, reads deeply into existing burnout frameworks before ever entering the field. By the time she conducts her first interview, she is already listening for how the data fits a model she encountered in the literature, rather than letting the data tell her what is actually happening within her data. 

Another researcher, determined to avoid any "contamination," avoids reading anything at all, including grounded theory methodology texts. He arrives at his first interview without a working understanding of constant comparison, open coding, or how a core category is expected to emerge, and finds himself unable to explain his own methodology when asked. 

Neither researcher is careless. Both are trying, in opposite directions, to honor a principle they have only heard described in shorthand.

Common Mistakes

• Treating "delay the literature review" as "never read anything," rather than understanding exactly what kind of reading is being delayed.

• Reading specifically and deeply in one's own substantive area before data collection, then unconsciously coding data to fit borrowed concepts.

• Skipping methodological literature on Glaserian classic grounded theory itself, leaving the researcher without a working grasp of the methodology.

• Never reading other classic grounded theories from unrelated substantive areas, missing a genuine opportunity to build theoretical sensitivity safely.

How Experienced Glaserian Researchers Think About It

For experienced classic grounded theorists, reading itself is never the problem. Premature, specific theory is. Glaser's guidance was never to become a blank slate — it was to avoid entering the field already holding existing theories and concepts about the exact substantive area under study, because those borrowed concepts can quietly substitute for the analysis, getting imposed on data rather than earned from it.

What classic grounded theorists read instead is substantial: methodological literature on grounded theory itself, general theory from adjacent and unrelated fields, and other classic grounded theories with no connection to their own topic. All of that reading builds theoretical sensitivity — an ability to recognize concepts and process at work — without handing the researcher a ready-made explanation for their own data.

This is why experienced classic grounded theorists often describe themselves as widely read rather than narrowly focused. The breadth is deliberate. It is the specificity of reading in one's own substantive area, not reading itself, that carries the risk.

Practical Guidance

None of this means avoiding the library. It means being deliberate about the order and scope of what you read, and why.

• Read methodological literature on classic grounded theory itself early and often — Glaser's foundational texts and subsequent GT methodology writing are appropriate at any stage of a study.

• Read widely outside your substantive area, such as general social science theory and adjacent disciplines, to sharpen your theoretical sensitivity without supplying answers specific to your topic.

• Hold off on searching your own topic's existing theories and explanatory frameworks until your core category has emerged; only then return to that literature, now treating it as another form of data to compare against your developing theory.

• If you notice yourself already "seeing" your data through a theory you encountered before entering the field, treat that as a signal to slow down and re-examine your assumptions, not as a sign of progress.

A Closing Reflection

The question of what to read and what to set aside can be a confusing part of learning Glaserian classic grounded theory, and it deserves a more careful answer than a slogan can give. Read widely. Read the method itself. Read theory that has nothing to do with your topic. What you protect is narrower and more specific than most new researchers expect, and once it is clear, it stops feeling like a restriction and starts feeling like the discipline that makes emergence possible.

That discipline is also what makes the resulting theory trustworthy. A core category that emerges from data, rather than from a borrowed framework, carries a kind of credibility that no amount of pre-existing theory could have supplied.