Item Response Theory in Jamovi - Multidimensional 2-PL Model ?

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tthkhanh
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Joined: Thu Dec 05, 2024 2:40 pm

Item Response Theory in Jamovi - Multidimensional 2-PL Model ?

Post by tthkhanh »

Hello,

I am looking to use Item Response Theory with Jamovi. I want to test unidimensionality of my Likert scale, so I think of comparing the fit indices of the unidimensional model and the multidimensional model. I also want to assess both item discrimination (a) and item difficulty (b). Are there any packages available in Jamovi for solving these questions ?

I have done some research and I have found the snowirt package, but it covers only the Rasch models, so only one parameter of Item Response Theory. Do you have any recommendations on this subject ?

Thank you so much ! :grinning:
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seol
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Joined: Mon Dec 04, 2017 8:40 am
Location: Seoul, Korea
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Re: Item Response Theory in Jamovi - Multidimensional 2-PL Model ?

Post by seol »

Hi
Multidimensional IRT analysis is not currently available in jamovi. For more detailed analysis related to the Rasch model, we recommend using the snowRMM module.

Kind Regards
Seol
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