Range of numerical integration PreviousNext
Mplus Discussion > Categorical Data Modeling >
 yang posted on Tuesday, January 07, 2014 - 10:29 am
I'm using Mplus version 7 to estimate unidimensional graded response models with ML. I learned from the manual that by setting "integration = standard(48)", Mplus will use rectangular quadratures (am I correct?). My question is how Mplus determines the range of quadrature nodes?

 Linda K. Muthen posted on Tuesday, January 07, 2014 - 2:32 pm
With rectangular integration (our default) we use equally spaced integration points between 5 to 5

With Gauss Hermite integration the integration points are roots of the Hermite polynomials they are not equally spaced so technically talking about range is misleading. For 30 points the smallest/largest roots are +-9.7

Also because we use adaptive integration, the integration changes from one iteration to the next and from one observation to another.
Back to top
Add Your Message Here
Username: Posting Information:
This is a private posting area. Only registered users and moderators may post messages here.
Options: Enable HTML code in message
Automatically activate URLs in message