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BAT validity and reliability: what the research shows and what it does not

In the development study of 1,500 Flemish employees, reliability was high: Cronbach's alpha was 0.95 for the core symptoms and 0.90 to 0.92 for the four core scales. [1] The authors list limits: only Flemish samples, no test of prediction over time, and no clinically validated cut-offs at the time. [1]

What did the development study find?

Schaufeli, Desart, and De Witte studied 1,500 employees from the Flemish working population, drawn from an online panel and split into two samples of 750, one for development and one for validation. [1] Cronbach's alpha was 0.95 for the core symptoms, 0.92 for exhaustion, 0.91 for mental distance, 0.92 for cognitive impairment, and 0.90 for emotional impairment. For the secondary symptoms it was 0.90 overall, 0.81 for psychological distress, and 0.85 for psychosomatic complaints. [1] The core dimensions form a second-order model. [1]

What do the authors say are the limits?

The authors list five. The conceptualisation reflects practitioners' expertise, not the views of people who have burnout. The study was cross-sectional, so it could not show how burnout unfolds over time. It examined only factorial validity, reliability, and construct validity, so predictive validity is unknown. The convergent validity of the secondary symptoms needs closer examination. And the BAT was tested only in a Flemish cultural context. [1]

What do the cut-offs and norms rest on?

The paper said clinically validated cut-off scores were not yet available, and suggested using an analysis called ROC to find a cut-off that balances sensitivity and specificity, with patient samples. [1] The user manual (version 2.0) gives cut-offs for Flemish employees based on patients identified by trained professionals, and says they are available for Flanders only. [2] Norms for the Netherlands are also given. [2] Treat them as provisional, for those groups.

What does the evidence not establish?

That a score identifies burnout in you, that Flemish cut-offs apply in your country, or that an online version behaves like the research one. The authors say that a comprehensive burnout diagnosis cannot be made on the basis of the BAT or any other questionnaire alone, and that a clinical interview by a trained professional is needed. [1] We read the development paper through Europe PMC and the manual in a copy hosted by a professional society, and not the full scientific manual.

What should I check before trusting an online BAT score?

Check these things before you trust an online BAT result:

  • Is it the official BAT, unmodified, with the 2020 paper cited?
  • Does it divide by the number of items, so the score is an average from 1 to 5?
  • If it gives green, orange, or red, does it say they are for Flemish employees?
  • Does it avoid presenting a result as a diagnosis?
  • Does it say what to do next, and when to see a doctor?

Sources and further reading

These links open external research and health-information websites.

  1. Schaufeli, Desart, and De Witte (2020): Burnout Assessment Tool (BAT): development, validity, and reliability. International Journal of Environmental Research and Public Health, 17(24), 9495
    The development paper: 1,500 Flemish employees, the dimensions, reliability, limitations, and the statement that no clinically validated cut-offs were yet available. Read through Europe PMC; the last 2,097 of about 202,000 characters not read.
  2. Schaufeli, De Witte, and Desart (2020): User manual, Burnout Assessment Tool (BAT), version 2.0. KU Leuven, Belgium (internal report). Copy read from the Australian and New Zealand Society of Occupational Medicine
    The versions, the dimensions and item counts, the five-point scale, how to calculate and interpret scores, the Flemish norms and cut-offs, and the three principles of use. Read on 2 November 2026.

This page is educational. A questionnaire score cannot establish a diagnosis or explain the cause of your symptoms. If you are struggling, speak with a doctor or mental health professional, whatever your score. Read when to get help for work stress or find a helpline in your country.