Invariant model - not invariant d's

[Nikos Tsigilis]

I am running a DIF analysis on 10 binary item.  The invaniant model was estimated using the following code:

>mod.invariant<-multipleGroup(con_nogender, 1, group=gender, invariance = c("interecpts", "slopes")) 

>coef(mod.invariant, simplify=TRUE).

However, although I get identical discrimination values for both groups, "d" values differ between groups.  Does anyone knows what might be the problem?

[Phil Chalmers]

"interecpts" != "intercepts" 

Phil

--
You received this message because you are subscribed to the Google Groups "mirt-package" group.
To unsubscribe from this group and stop receiving emails from it, send an email to mirt-package+unsubscribe@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

[Nikos Tsigilis]

Ok, Thanks a lot.  

On Monday, May 8, 2017 at 4:46:09 PM UTC+3, Phil Chalmers wrote:

"interecpts" != "intercepts" 

Phil

On Mon, May 8, 2017 at 6:24 AM, 'Nikos Tsigilis' via mirt-package <mirt-p...@googlegroups.com> wrote:

I am running a DIF analysis on 10 binary item.  The invaniant model was estimated using the following code:

>mod.invariant<-multipleGroup(con_nogender, 1, group=gender, invariance = c("interecpts", "slopes")) 

>coef(mod.invariant, simplify=TRUE).

However, although I get identical discrimination values for both groups, "d" values differ between groups.  Does anyone knows what might be the problem?

--
You received this message because you are subscribed to the Google Groups "mirt-package" group.

To unsubscribe from this group and stop receiving emails from it, send an email to mirt-package...@googlegroups.com.