option to link tests via common item
Posted: Fri Aug 16, 2024 12:59 pm
Hi
There are a few options in the snowIRT module to link different measurement instruments.
Would it be possible to add a new one that is based on the principles outlined in Engelhard and Wang's book "Rasch Models for Solving Measurement Problems: Invariant Measurement in the Social Sciences"? I'm attaching a couple of pictures from the book that hopefully illustrate what I mean.
The approach uses the logit values from Rasch analysis to link two instruments provided that there are shared items.
Best
Marju
There are a few options in the snowIRT module to link different measurement instruments.
Would it be possible to add a new one that is based on the principles outlined in Engelhard and Wang's book "Rasch Models for Solving Measurement Problems: Invariant Measurement in the Social Sciences"? I'm attaching a couple of pictures from the book that hopefully illustrate what I mean.
- Engelhard&Wang_1.png (192.74 KiB) Viewed 36999 times
- Engelhard&Wang_2.png (66.8 KiB) Viewed 36999 times
Best
Marju