CFA of retained items in the M. D. Anderson Symptom Inventory with covaried error terms Note: Parameter estimates are standardized. Model fit indices were χ2(2) = 4.89, p = .096; RMSEA = .066 (CI <.001, .146); CFI = .998; SRMR = .012. Covariations were added stepwise, with a new model assessed after each modification. Modification indices first supported a 48.96 Δχ2 improvement of fit for the covariation of items one and three (χ2(4) = 77.80, p < .001; RMSEA = .245 (CI .119, .294); CFI = .938; SRMR = .038). Modification indices next supported a 42.73 Δχ2 improvement of fit for the covariation of items two and three (χ2(3) = 22.66, p < .001; RMSEA = .146 (CI .094, .205); CFI = .983; SRMR = .023). Finally, modification indices supported a 15.88 Δχ2 improvement of fit for the covariation of items one and four, resulting in the above utilized model.