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. Author manuscript; available in PMC: 2009 Sep 17.
Published in final edited form as: J Trauma Stress. 2008 Jun;21(3):309–317. doi: 10.1002/jts.20344

Table 7.

Indices of Fit for Configural and Metric Invariance

Groups and model df S-B χ2 RMSEA RMSEA 90% CI SRMR CFI* AIC
Registry vs. post-Vietnam
   Configural invariance 233 644.74 0.075 0.068–0.082 0.066 0.99 790.74
   Metric invariance 246 744.95 0.080 0.074–0.087 0.111 0.99 864.95
Registry vs. Vietnam
   Configural invariance 233 813.26 0.067 0.062–0.072 0.053 0.99 959.26
   Metric invariance 246 1020.96 0.075 0.070–0.080 0.074 0.99 1140.96
Post-Vietnam vs. Vietnam
   Configural invariance 233 598.67 0.056 0.048–0.058 0.044 0.98 744.67
   Metric invariance 246 619.04 0.052 0.047–0.057 0.044 0.98 739.04

Note. The S-B χ2 values are all significant at p < .05. The RMSEA 90% confidence intervals (CI) are all significant at p < .001.