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Table 1 Inter-rater variability: Expectation of stakeholders. ‘Maximum acceptable difference’ in work capacity (WC) ratings between two experts performing a psychiatric evaluation in the same patient [6]

From: The reproducibility of psychiatric evaluations of work disability: two reliability and agreement studies

What is the maximum difference in WC ratings that stakeholders would find acceptable when two experts independently assess the same patient?

Lawyers

(n = 81)

Psychiatrists

(n = 242)

Experts

(n = 114)

Judges

(n = 47)

Insurers

(n = 108)

… in the current situation of performing evaluations, median difference (interquartile range, IQR)

15%

(10–20%)

20%

(10–25%)

20%

(10–25%)

15%

(10–20%)

10%

(10–20%)

  1. Legend: WC: work capacity; % WC = absolute percentage points in work capacity
  2. How to interpret this table?
  3. • 75% of treating and expert psychiatrists felt that the ‘maximum acceptable difference’ in WC ratings between two experts should be 25% corresponding to the upper limit of the IQR
  4. • 75% of lawyers, judges and insurers and 50% of treating and expert psychiatrists felt that the ‘maximum acceptable difference’ in WC ratings between two experts should be 20% WC corresponding to the upper limit of the IQR (jurists) or the median (psychiatrists)
  5. • 50% of lawyers, judges and insurers felt that the ‘maximum acceptable difference’ in WC ratings between two experts should be 15% corresponding to the median
  6. • 25% of all stakeholders felt that the ‘maximum acceptable difference’ in WC ratings between two experts should be 10% corresponding to the lower limit of the IQR