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The Work of Byron Katie: Four-Question Self-Inquiry

The Work of Byron Katie is a four-question self-examination, developed by Byron Katie, that you can do in writing or aloud. You take one painful thought, test it with a set of questions and a turnaround, and notice what changes in how you feel. Byron Katie developed the approach. One pilot clinical study of the method itself (Smernoff et al., 2015) examined its effects on psychological symptoms and quality of life. Related research on cognitive restructuring suggests that examining thoughts can help, but it does not test this method directly.

What it is

You start with a thought that is causing you distress, written as a plain sentence about a situation, a person or yourself. You then ask a short set of questions: whether the thought is true, whether you can be sure it is true, how you react when you believe it, and who you would be without it. The method is self-guided, although many people learn it in workshops.

The method also asks you to turn the thought around, toward yourself, toward the other person or toward its opposite, and to look for a real example that fits each version. The developers describe the process as loosening a belief's hold. The one pilot study examined symptoms and quality of life, not the beliefs themselves.

Where it comes from

Byron Katie developed the approach. An early introduction to it appeared in 2001, in an article by Shohet in the journal Self & Society.

The method sits alongside cognitive restructuring, the CBT technique for examining and changing thoughts. Research on that technique is the nearest evidence available, and it is summarised under Evidence.

Also known as four-question belief inquiry.

The principles underneath

Test the thought itself

The questions examine the belief, including whether it holds up against what you know, rather than asking you to change how you feel about someone else.

Notice what the belief does

The method treats a belief as something that produces a reaction in the body and in action, so the reaction becomes part of the evidence.

Look for the reverse

Turning a statement around shows other ways it could be true, and asks for a real example of each.

One belief at a time

Working through one thought keeps the inquiry concrete and makes any shift easier to notice.

How a session runs

  1. Write one painful thought as a plain sentence about a situation, a person or yourself.
  2. Ask whether the thought is true, then whether you can be completely sure it is true.
  3. Notice how you react, in your body and in what you do, when you believe the thought.
  4. Ask who you would be without the thought, and how you would feel in the same situation.
  5. Turn the thought around, toward yourself, toward the other person and toward its opposite, and find a real example of each that could be true.
  6. Note what has shifted, then move on to the next belief or stop.

When it tends to fit

  • You keep replaying a conversation and telling yourself what the other person should have done.
  • A thought such as "I should have known better" returns every time you make a mistake.
  • You want to examine a belief you already suspect is untrue, rather than argue with it in your head.

What the research shows

Evidence: Some peer-reviewed studies

One pilot clinical study examined the method's effects on psychological symptoms and quality of life (Smernoff et al., 2015). Its title is the only part of that study this page can report, because its abstract could not be read on 2026-10-14. The nearest research is on cognitive restructuring. A 2023 meta-analysis of four studies with 353 clients found an association of r = .35 between cognitive restructuring carried out within a session and psychotherapy outcome (Ezawa & Hollon, 2023). A 2021 network meta-analysis of 45 trials found that cognitive restructuring, behavioral activation and cognitive behavioral therapy were each superior to usual care for adult depression, with no clear difference between them (Ciharova et al., 2021).

Where the evidence is thin: The Smernoff study is one pilot clinical study, and its title concerns symptoms and quality of life, not the beliefs the method works on. The cognitive restructuring studies test a related technique in CBT, not this method's questions, and the Ezawa analysis covers four studies only. None of this shows that the method works on its own.

Sources

  1. Smernoff, E., Mitnik, I., Kolodner, K., & Lev-Ari, S. (2015). The Effects of “The Work” Meditation (Byron Katie) on Psychological Symptoms and Quality of Life—A Pilot Clinical Study. Explore, 11(1), 24–31.
  2. Ezawa, I., & Hollon, S. (2023). Cognitive restructuring and psychotherapy outcome: A meta-analytic review. Psychotherapy, 60(3), 396–406.
  3. Ciharova, M., Furukawa, T. A., Efthimiou, O., et al. (2021). Cognitive restructuring, behavioral activation and cognitive-behavioral therapy in the treatment of adult depression: A network meta-analysis. Journal of Consulting and Clinical Psychology, 89(6), 563–574.
  4. Shohet, R. (2001). An Introduction to The Work of Byron Katie. Self & Society, 29(1), 19–22.

Where it stops

The method is self-guided and is not designed for trauma, severe depression, or thoughts about harming yourself. For those, a qualified clinician is the right place to start.

Questioning a belief can turn into arguing yourself out of a feeling that needs acknowledging first. If the thought points to something you have not yet grieved or accepted, slow down or work with someone trained in it.

A single pilot study cannot show whether any change came from the method itself or from other factors around it.

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