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Table 2 Internal consistency (Cronbach’s Alpha) of the Fatigue Severity Scale

From: Psychometric properties of the Fatigue Severity Scale in obese patients

  Baseline After intervention
Item Corrected item-total correlation Cronbach's alpha if item deleted Corrected item-total correlation Cronbach's alpha if item deleted
1 0.73 0.93 0.70 0.92
2 0.72 0.93 0.41 0.95
3 0.79 0.93 0.80 0.91
4 0.77 0.93 0.85 0.91
5 0.81 0.93 0.83 0.91
6 0.84 0.93 0.86 0.91
7 0.69 0.94 0.75 0.92
8 0.83 0.93 0.84 0.91
9 0.75 0.93 0.76 0.92