Chi-square statistic of the test of bivariate normality (polycor's, on a binned table).
The thresholds of the ordinal variable (the estimates with ML, the two-step ones otherwise).
Its degrees of freedom, 3 s − 1 for s categories.
The number of observations used.
The correlation (NaN where polycor returns NA).
Variances and covariances of the estimates, in the order rho, the thresholds; 1 × 1 (rho alone) without ML.
polycor's warnings, in order.
Result of polyserial with
stdErr.