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. Author manuscript; available in PMC: 2019 Mar 1.
Published in final edited form as: Heart Lung. 2018 Feb 1;47(2):149–156. doi: 10.1016/j.hrtlng.2017.12.007

Table 4.

Model Fit Indexes of Structural Equation Modeling Examining Interrelationships between Four Symptoms and Physical Performance

χ2 M dfM RMSEA CFI SRMR
Measurement model
 5-factor standard CFA 287.077a 80 .10 .92 .08
 5-factor CFA with three correlated errorsb 197.961a 77 .08 .95 .08
Structural regression model
 Hypothesized modelc 197.961a 75 .08 .95 .08
a

p < .001;

b

allowing three correlated errors between six minute walk test and daily total steps, HADS-A and HADS-D, and HADS-A and PHQ-9;

c

allowing four correlated errors between Anxiety and Depression, six minute walk test and daily total steps, HADS-A and HADS-D, and HADS-A and PHQ-9.

Note. RMSEA, root mean square error of approximation; CFI, comparative fit index; SRMR, standardized root mean residual.