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Table 1 Summary fit statistics, subsample 1 (n = 800)

From: Shortening of the Burnout Assessment Tool (BAT)—from 23 to 12 items using content and Rasch analysis

  Item residual Person residual Chi square Unidimensionality
Analysis name Mean SD Mean SD Value p PSI Test % (95% CI)
BAT 23 items* -0.15 2.91 -0.86 2.86 416.51  < 0.0001 0.95 20.9 (18.2;23.9)
BAT19 -0.12 2.55 -0.85 2.46 314.34  < 0.0001 0.94 15.8 (13.4;18.6)
BAT15a -0.12 2.32 -0.80 2.26 192.35 0.0001 0.93 13.4 (11.2;16.4)
BAT15b -0.19 2.25 -0.79 2.23 205.71  < 0.0001 0.93 13.8 (11.5;16.0)
BAT14 -0.10 2.21 -0.78 2.17 170.67 0.005 0.92 13.0 (10.8;15.6)
BAT13 -0.15 2.26 -0.80 2.18 156.73 0.008 0.91 12.1 (10.0;14.7)
BAT12 -0.19 2.32 -0.78 2.07 159.74 0.0009 0.91 13.0 (10.8;15.6)
BAT12 4 testlets 0.27 1.28 -0.51 1.14 45.06 0.14 0.82 4.4 (3.1;6.2)
  1. aThe BAT23 results are previously published in Hadžibajramović, E., W. Schaufeli, and H. De Witte, A Rasch analysis of the Burnout Assessment Tool (BAT). PLOS ONE, 2020. 15(11): p. e0242241