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Model Fit Bootstrap P-Value |
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I'm testing a latent growth model, and using BOOTSTRAP (RESIDUAL) with ML estimator. In output is the following: Chi-Square Test of Model Fit Value 154.897 Degrees of Freedom 85 P-Value 0.0000 Bootstrap P-Value 0.2257 How is the Bootstrap p-value derived, and what null is it testing? Thanks! Michael |
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This is the Bollen-Stine bootstrap procedure. See Bollen, K.A. & Stein, R.A. (1992). Bootstrapping goodness-of-fit measures in structural equation models. Sociological Methods & Research, 21, 205-229. The null hypothesis is the estimated latent growth model and the h1 unrestricted alternative is the usual unrestricted variance covariance model. The main advantage of the bootstrap method is that it does not depend on the assumptions of normality. See also Enders, C. K. (2002). Applying the Bollen–Stine bootstrap for goodness-of-fit measures to structural equation models with missing data. Multivariate Behavioral Research, 37, 359–377. |
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