Megan McVay posted on Wednesday, July 26, 2017 - 10:27 am
We're trying to run this model with a categorical mediator and getting the following error message. We were not able to find anything useful in looking at Tech4 output.
Any insights are appreciated!
categorical = sspacat26n;
wtkg56n on wtkg0n randn sspacat26n; sspacat26n on randn sspacat0n;
randn with sspacat0n wtkg0n; wtkg0n with sspacat0n;
model indirect: wtkg56n ind randn;
WARNING: THE LATENT VARIABLE COVARIANCE MATRIX (PSI) IS NOT POSITIVE DEFINITE. THIS COULD INDICATE A NEGATIVE VARIANCE/RESIDUAL VARIANCE FOR A LATENT VARIABLE, A CORRELATION GREATER OR EQUAL TO ONE BETWEEN TWO LATENT VARIABLES, OR A LINEAR DEPENDENCY AMONG MORE THAN TWO LATENT VARIABLES. CHECK THE TECH4 OUTPUT FOR MORE INFORMATION. PROBLEM INVOLVING VARIABLE WTKG56N.