Health and Quality of Life Outcomes

Table 4 Comparison of the two reliability coefficients for every domain and the overall scale for various test lengths

From: Reliability analysis of the Chinese version of the Functional Assessment of Cancer Therapy – Leukemia (FACT-Leu) scale based on multivariate generalizability theory

Domain	Number of items			G coefficient			Ф coefficient
Domain	half^b	original^b	double^b	half	original	double	half	original	double
PWB	4	7	14	0.794	0.871	0.931	0.763	0.849	0.918
SWB	4	7	14	0.717	0.816	0.899	0.696	0.800	0.889
EWB	3	6	12	0.608	0.756	0.861	0.555	0.714	0.833
FWB	4	7	14	0.756	0.845	0.916	0.726	0.823	0.903
LEUS	9	17	34	0.756	0.854	0.921	0.674	0.796	0.887
Overall scale^a	24	44	88	0.903	0.945	0.972	0.877	0.928	0.963

^aFor the overall scale, the G coefficient is the composite G coefficient and the Ф coefficient is the composite Ф coefficient
^bhalf means the half test length, original means the original test length, and double means the double test length

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ISSN: 1477-7525

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