求助各位大佬!!!mplus做潜增长模型,总是会有这样的warning出现,第一部分的结果是正常的,标准化的结果中斜率、截距与斜率的相关等报出来的是999,这到底是为什么呀。
非正定矩阵的话是变量间相关太高了吗?但是我看变量的相关是大概是0.54,做其他变量的时候相关更高也没有出现这样的问题。
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 SLOPE.