Author Topic: Background model in Conquest 3.0  (Read 437 times)

AnnaVol

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Background model in Conquest 3.0
« on: January 28, 2014, 07:27:17 AM »
Hallo,

as far as I know, 2PL in Conquest 3.0 works only with constraints=cases, but you usually need constraints=none for estimating the background model. That means, that it is not possible to rightly estimate 2PL background model in Conquest 3.0 or?

Thank you in advance!

Eveline Gebhardt

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Re: Background model in Conquest 3.0
« Reply #1 on: February 11, 2014, 10:36:31 PM »
Hi

You can use constraints=cases with a regression model. The intercept will be fix to zero, while the regression coefficients will be estimated.

Eveline