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Table 4 Univariate analysis of variance, comparing randomised trial results with original FACT-G total scores and scales scores and abbreviated scales following removal of misfitting items

From: A Rasch and factor analysis of the Functional Assessment of Cancer Therapy-General (FACT-G)

  Original scales Misfitting items removed
  F statistics P value Effect size F statistics P value Effect size
FACT-G 5.32 0.006 0.16 3.00 0.05 0.18
PWB 4.45 0.013 0.16 3.91 0.022 0.14
FWB 3.79 0.024 0.16 6.39 0.002 0.14
EWB 4.84 0.009 0.24 4.78 0.01 0.23
SFWB <1 >0.1 0.10 <1 >0.1 0.20