How to interpret `indicator|t1`?

[Stan Silver]

q12|t1 q12|t2 q12|t3 q12|t4 

-1.014 -0.367 0.269 0.968

What's the meaning of `|`?

[Patrick (Malone Quantitative)]

It looks like q12 is an ordinal indicator with 5 values. t1 through t4
are the thresholds between levels.

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Patrick S. Malone, Ph.D., Malone Quantitative
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[Stan Silver]

Hi Patrick,

Thanks for youre replay. 

What's `thresholds between levels`? Is that something like `difficulty` in IRT?

On Monday, July 6, 2020 at 3:31:53 AM UTC+8, Patrick (Malone Quantitative) wrote:

It looks like q12 is an ordinal indicator with 5 values. t1 through t4
are the thresholds between levels.

On Sun, Jul 5, 2020 at 3:05 PM Stan Silver <mailtoy...@gmail.com> wrote:
>
> q12|t1 q12|t2 q12|t3 q12|t4
>
> -1.014 -0.367 0.269 0.968
>
> What's the meaning of `|`?
>
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[Terrence Jorgensen]

What's `thresholds between levels`? Is that something like `difficulty` in IRT?

They are related.  This article should be helpful:

http://dbauer.web.unc.edu/files/2014/08/kamata-bauer-2008.pdf

Terrence D. Jorgensen

Assistant Professor, Methods and Statistics

Research Institute for Child Development and Education, the University of Amsterdam

http://www.uva.nl/profile/t.d.jorgensen