Hello Dr. Chalmers,
Using random slope parameters, I generated some data using
simdata. I can recover estimates of these parameters using the
coef-method on a model obtained from running the
mirt function on the data.
I'd just like to know if the order of estimated slope parameters matches that of the "true" parameters used to simulated the data.
For example, given a slope matrix
a with two factors:
[,1] [,2]
[1,] 1.08624628 1.3448732
[2,] ... ...
Do a1,a2 in the output of coef-method correspond to column 1,2 of the a matrix respectively?
$Item_1
a1 a2 d g u
par 1.318 1.369 -1.205 0 1
Or is the order not preserved, only the magnitudes?
Thanks kindly in advance for your attention,
David