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Table 6 Measurement model fit for EPIC-26 scores of the Norwegian sample (N = 651)

From: Psychometric properties of the expanded prostate cancer index composite - 26 instrument in a cohort of radical prostatectomy patients: theoretical and practical examinations

Fit-indexes

Six-factor solution

Four-factor solution

Threshold values

Chi-Square

995.18

1637.19

df

284

293

P-value

0.000

0.000

RMSEA (95% CI)

0.062 (0.058;0.066)

0.084 (0.080;0.088)

0.07

SRMR

0.062

0.077

0.08

CFI

0.96

0.93

0.95

PNFI

0.83

0.83

0.50

AIC

1129.18

1753.19

Lowest value are optimal