petersenlab (version 1.1.0)

satorraBentlerScaledChiSquareDifferenceTestStatistic: Satorra-Bentler Scaled Chi-Square Difference Test Statistic.

Description

Function that computes the Satorra-Bentler Scaled Chi-Square Difference Test statistic.

Usage

satorraBentlerScaledChiSquareDifferenceTestStatistic(T0, c0, d0, T1, c1, d1)

Value

Satorra-Bentler Scaled Chi-Square Difference Test statistic.

Arguments

T0

Value of the chi-square statistic for the nested model.

c0

Value of the scaling correction factor for the nested model.

d0

Number of model degrees of freedom for the nested model.

T1

Value of the chi-square statistic for the comparison model.

c1

Value of the scaling correction factor for the comparison model.

d1

Number of model degrees of freedom for the comparison model.

Details

Computes the Satorra-Bentler Scaled Chi-Square Difference Test statistic between two structural equation models.

See Also

Other structural equation modeling: equiv_chi(), make_esem_model(), puc(), semPlotInteraction()

Examples

# Fit structural equation model
HS.model <- '
 visual =~ x1 + x2 + x3
 textual =~ x4 + x5 + x6
 speed =~ x7 + x8 + x9
'

fit1 <- lavaan::cfa(HS.model, data = lavaan::HolzingerSwineford1939,
 estimator = "MLR")
fit0 <- lavaan::cfa(HS.model, data = lavaan::HolzingerSwineford1939,
 orthogonal = TRUE, estimator = "MLR")

# Chi-square difference test
# lavaan::anova(fit1, fit0)
satorraBentlerScaledChiSquareDifferenceTestStatistic(
 T0 = lavaan::fitMeasures(fit0)["chisq.scaled"],
 c0 = lavaan::fitMeasures(fit0)["chisq.scaling.factor"],
 d0 = lavaan::fitMeasures(fit0)["df.scaled"],
 T1 = lavaan::fitMeasures(fit1)["chisq.scaled"],
 c1 = lavaan::fitMeasures(fit1)["chisq.scaling.factor"],
 d1 = lavaan::fitMeasures(fit1)["df.scaled"])