What is the meaning of alpha, beta, lambda, tau, nu, gamma, and psi in Structural Equasion Modelling?

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Karin Schermelleh-Engel Popular answer

Witold,

these abbreviations refer to matrices and vectors in your model containing parameter estimates:

NU = intercepts

LAMBDA = factor loadings

THETA = Error variances

ALPHA = latent means (means of factors)

BETA = structural coefficients, effects between latent variables

PSI = latent variances and covariances

All free parameters are numbered consecutively.

Regards,

Karin

Karin Schermelleh-Engel

Deb Narayan Goswami

Thanks, but please advise what does a Gamma coefficient mean in SEM ?