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Table 2 Model Fit Statistics for the five mini-MAC subscales

From: Rasch analysis of the Mini-Mental Adjustment to Cancer Scale (mini-MAC) among a heterogeneous sample of long-term cancer survivors: A cross-sectional study

Action Analysis # of items in the subscale Chi-square Items Fit Residual Mean (SD) Persons Fit Residual Mean (SD) PSI Unidimensional t-test
Value p
Anxious Preoccupation (n= 693)     
 Original 1 8 191.70 < .001 .22 (2.61) -.38 (1.20) .80 5.57
 Item 25 removed 2 7 147.87 < .001 -.006 (1.92) -.39 (1.13) .78 -
 Item 7 removed 3 7 183.81 < .001 .07 (2.49) -.38 (1.14) .79 -
 Items 7 and 25 removed* 4 6 137.78 < .001 -.15 (1.53) -.39 (1.04) .77 3.71
 Items 7, 25, and 29 removed* 5 5 104.66 < .001 -.19 (1.36) −39 (.99) .71 3.47
Cognitive Avoidance (n= 689)  
 Original 6 4 93.46 < .001 1.10 (1.85) -.58 (1.34) .70 3.38
 Item 11 removed 7 3 75.91 < .001 1.20 (1.83) -.49 ( − 1.02) .66 -
 Items 11 and 17 removed* 8 2 35.20 < .001 .30 (.32) -.58 (.77) .66 -
Fighting Spirit (n=723)       
 Original 9 4 168.39 < .001 .31 (2.11) -.45 (1.28) .61 .72
 Rescoring all items 10 4 121.66 < .001 .90 (2.51) -.22 (.89) .52 -
 Rescoring all items and item 18 removed 11 3 80.43 < .001 1.23 (.94) -.17 (.71) .42 -
Fatalism (n=749)        
 Original 12 5 106.89 < .001 .96 (.67) -.28 (1.06) .61 2.22
 Rescoring all items 13 5 88.44 < .001 1.15 (.56) -.18 (.98) .57 .62
Helplessness-Hopelessness (n= 437)       
 Original 14 8 202.20 < .001 -.21 (2.95) -.54 (1.33) .57 1.47
 Rescoring all items 15 8 169.04 < .001 -.44 (2.93) -.50 (1.35) .59 -
 Rescoring all items and item 12 removed 16 7 153.30 < .001 -.44 (2.82) -.47 (1.22) .56 -
Rescoring all items and items 12 and 14 removed* 17 6 79.59 < .001 -.55 (2.27) -.66 (1.63) .43 -
 Rescoring all items and items 12, 14, and 20 removed* 18 5 45.00 < .001 -.05 (1.40) -.59 (1.49) .35 -
 Rescoring all items and item 20 removed 19 7 136.82 < .001 -.11 (2.23) -.46 (1.28) .54 -
 Rescoring all items and items 20 and 16 removed* 20 6 94.66 < .001 .14 (1.52) -.45 (1.28) .49 .74
  1. * Items listed in the order they were deleted. Anxious preoccupation items – 5,7,9,13,22,25,28,29; Cognitive avoidance – 11,17,26,27; Fighting spirit – 2,10,18,23; Fatalism – 1,3,8,19,24; Helplessness-hopelessness – 4,6,12,14,15,16,20,21.