Skip to main content

Table 1 Comparisons of model fit for the ASI

From: Psychometric investigation of the French version of the Aberrant Salience Inventory (ASI): differentiating patients with psychosis, patients with other psychiatric diagnoses and non-clinical participants

Model χ2 df p-value RMSEA 90% C.I. for RMSEA CFI TLI Remarks
General population (N = 282)
  (a) Original five-factor model 511.981 367  < 0.001 0.037 0.029–0.045 0.938 0.932 4-factor correlations > 0.90
  (b) Three-factor modela 500.910 347  < 0.001 0.040 0.032–0.047 0.932 0.926
  (c) One-factor modela 548.720 350  < 0.001 0.045 0.038 –0.052 0.912 0.905
 (b) vs (c)         (b) better than (c)
(Δχ2 = 41.695, Δdf = 3, p < .001)
Clinical population (N = 150)
 (a) Original five-factor model 437.586 367 .007 0.036 0.020–0.048 0.955 0.950 3-factor correlations > 0.90 and loading of item 8 not significant
  (b) Three-factor modela 403.218 347 .020 0.033 0.014 –0.046 0.964 0.961
(c) One-factor modela 451.269 350  < 0.001 0.044 0.031–0.055 0.935 0.930
  (b) vs (c)         (b) better than (c) (Δχ2 = 38.963, Δdf = 3, p < 0.001)
  1. df, degrees of freedom; RMSEA, Root Mean Square Error of Approximation; CI, confidence Interval; CFI, Comparative Fit Index; TLI, Tucker–Lewis Index; a Item 8 excluded