Table 3 CFA results for PTSD structure models across total sample (N = 1776).

From: Measurement invariance of six language versions of the post-traumatic stress disorder checklist for DSM-5 in civilians after traumatic brain injury

Model

No. factors

χ2

df

p

CFI

TLI

SRMR

RMSEA

RMSEA 90% CI

ΔCFI

ΔTLI

ΔSRMR

ΔRMSEA

Δχ2

Δdf

Δp

DSM-5

4

1148.18

166

 < .001

0.993

0.992

0.051

0.058

[0.055; 0.061]

–

–

–

–

–

–

–

Dysphoria

4

818.55

166

 < .001

0.995

0.995

0.043

0.047

[0.044; 0.051]

0.002

0.003

–0.008

–0.011

–

–

–

Anhedonia

6

855.49

164

 < .001

0.995

0.994

0.045

0.049

[0.046; 0.052]

0.002

0.002

–0.006

–0.009

130.56

2

 < .001

Hybrid

7

863.09

163

 < .001

0.995

0.994

0.045

0.049

[0.046; 0.053]

0.002

0.002

–0.006

–0.009

187.95

3

 < .001

  1. The DSM-5 model served as a reference. Scaled chi-square difference tests were computed between the DSM-5 model and nested models. CFA confirmatory factor analysis, CFI comparative fit index, ΔCFI, difference in CFI; CI confidence interval, df degrees of freedom, Δdf, difference in df; No. number of, p statistical significance of χ2, PTSD post-traumatic stress disorder, Δp statistical significance of Δχ2, RMSEA root mean square of approximation, ΔRMSEA, difference in RMSEA; SRMR standard root mean square residual, ΔSRMR, difference in SRMR; TLI Tucker-Lewis index, ΔTLI, difference in TLI; χ2, overall scaled chi-square statistic; Δχ2, scaled chi-square difference statistic.
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