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. Author manuscript; available in PMC: 2017 Jul 1.
Published in final edited form as: Qual Life Res. 2016 Jan 28;25(7):1803–1813. doi: 10.1007/s11136-016-1230-9

Table 7.

Reliability and data distribution characteristics of the fatigue PROMIS FatigueFM Profile short form scores and standard PROMIS Fatigue short forms

Measure Reliability T score Mean ± SD Floor (%) Ceiling (%) Skew Kurtosis
PROMIS FatigueFM Profile short forms
    Fatigue experience 0.89 65.39 ± 6.86 0 7.1 −0.38 −0.20
    Fatigue social impact 0.91 65.16 ± 6.89 0.6 10.2 −0.69 0.22
    Fatigue motivational impact 0.88 65.16 ± 6.29 0 8.3 −0.63 0.34
    Fatigue cognitive impact 0.90 65.91 ± 7.21 0.6 4.9 −0.48 −0.02
PROMIS Fatigue Short Form 4a 0.86 64.83 ± 6.31 0 11.1 −0.57 0.02
PROMIS Fatigue Short Form 6a 0.90 65.30 ± 6.16 0 7.9 −0.67 0.20
PROMIS Fatigue Short Form 7a 0.83 59.85 ± 5.33 0 0 −0.47 −0.68
PROMIS Fatigue Short Form 8a 0.87 65.51 ± 6.04 0 5.6 −0.68 0.41