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

A 2025 review found the MBI-HSS reliable overall in 74 healthcare studies, with weaker and more variable results on the depersonalisation and personal accomplishment subscales, and three factors supported. [1] The publisher removed cut-off scores because they had no diagnostic validity. [2]

What did the 2025 review find?

Efremova and colleagues reviewed burnout scales used in healthcare workers during COVID-19. The MBI-HSS was the most used, in 333 studies. [1] Across 74 studies that reported it, overall Cronbach's alpha was 0.81 to 0.94. By subscale, emotional exhaustion ranged from 0.62 to 0.96, depersonalisation from 0.15 to 0.98, and personal accomplishment from 0.60 to 0.92. Test-retest reliability (ICC) was 0.77. Factor analysis loadings were 0.55 to 0.86, and confirmatory analysis supported three factors. [1]

Which parts are weaker?

Eleven studies reported alpha of 0.58 to 0.68, below the conventional 0.70, and three reported 0.15 to 0.56, including 0.15 for depersonalisation in one study. [1] Shortened versions had thinner evidence: a five-item exhaustion version had no psychometric data, a two-item version had alpha of 0.67 to 0.83 and no original validation data, and a nine-item version had alpha of 0.73, 0.69, and 0.61 for its three subscales. [1]

What about the general survey?

For the 16-item MBI-GS, the review reports alpha of 0.71 to 0.99, factor loadings above 0.72, and support for three factors. [1]

What do the missing cut-offs tell us?

The publisher removed cut-off scores from the fourth edition of the manual because they had no diagnostic validity. [2] The review cites an earlier review that called for a diagnostic standard for burnout, so no agreed standard exists. [1] A score cannot show that you have burnout.

What does the evidence not establish?

That a score predicts what will happen to you, or that the review's figures apply to your job. The review covered healthcare workers during a pandemic, and we read only part of its text. [1]

What should I check before trusting an MBI score?

Check these things before you trust an MBI result:

  • Is it the official survey, from the publisher or another licensed source?
  • Does it show three separate scores, not one total?
  • Does it avoid presenting a result as a diagnosis?
  • If it gives cut-offs, does it say where they come from?
  • 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. Efremova et al. (2025): Burnout scales used in healthcare workers during the COVID-19 pandemic and their psychometric properties: a systematic review. Frontiers in Public Health
    An open-access review that compares the MBI, CBI, and OLBI. First 100,000 of about 165,000 characters read through Europe PMC; the rest not read.
  2. Mind Garden: Maslach Burnout Inventory (the publisher's MBI page)
    The versions and item counts, the three dimensions, the seven-point frequency scale, the five burnout profiles, the advice against a single burnout score, and the statement that cut-offs were removed from the fourth edition. 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.