SEINE: Standard Errors of Indirect Effects

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Abstract
In his early exposition of path analysis, Duncan (1966, p. 7) noted that the method "provides a calculus for indirect effects." Despite the interest in indirect causal effects, most users treat them as if they are population parameters and do not test whether they are statistically significant. Sobel (1982) has recently derived the asymptotic distribution of indirect effects. This paper describes a new FORTRAN IV computer program that provides the causal modeler with standard errors of indirect effects for recursive causal models. The only input data required are in the form of a matrix of structural parameter estimates along with their variances and covariances.

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