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fit

Model-implied indicator or construct variance-covariance matrix


Description

Calculate the model-implied indicator or construct variance-covariance (VCV) matrix. Currently only the model-implied VCV for recursive linear models is implemented (including models containing second order constructs).

Usage

fit(
  .object    = NULL, 
  .saturated = args_default()$.saturated,
  .type_vcv  = args_default()$.type_vcv
  )

Arguments

.object

An R object of class cSEMResults resulting from a call to csem().

.saturated

Logical. Should a saturated structural model be used? Defaults to FALSE.

.type_vcv

Character string. Which model-implied correlation matrix should be calculated? One of "indicator" or "construct". Defaults to "indicator".

Details

Notation is taken from Bollen (1989). If .saturated = TRUE the model-implied variance-covariance matrix is calculated for a saturated structural model (i.e., the VCV of the constructs is replaced by their correlation matrix). Hence: V(eta) = WSW' (possibly disattenuated).

Value

Either a (K x K) matrix or a (J x J) matrix depending on the type_vcv.

References

Bollen KA (1989). Structural Equations with Latent Variables. Wiley-Interscience. ISBN 978-0471011712.

See Also


cSEM

Composite-Based Structural Equation Modeling

v0.4.0
GPL-3
Authors
Manuel E. Rademaker [aut, cre] (<https://orcid.org/0000-0002-8902-3561>), Florian Schuberth [aut] (<https://orcid.org/0000-0002-2110-9086>), Tamara Schamberger [ctb] (<https://orcid.org/0000-0002-7845-784X>), Michael Klesel [ctb] (<https://orcid.org/0000-0002-2884-1819>), Theo K. Dijkstra [ctb], Jörg Henseler [ctb] (<https://orcid.org/0000-0002-9736-3048>)
Initial release
2021-04-09

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