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Hi, I want to know how to save the error of theta for each person in a multidimensional model with IRT analysis.
Also, how to obtain the factor scores and their error in a second sample, taking into account the parameters estimated with a original sample.
Thank you! |
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| Check the UG for FScores which can be saved using the Savedata command. Different estimators give different savings. |
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| For the second part of your question, in your second sample you should fix all parameters at the estimated values from the first sample and just estimated the Fscores. |
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Iīve tried your suggestion, but the results show the same error for all the sample, it couldnīt be possible, I think...
What do you think could be the cause? the estimator maybe? |
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| Send the output and data to Support along with your license number so we can look at what's going on. |
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