Rasch with lme4
On ?, 2009-06-09 at 08:04 +1000, Ken Beath wrote:
The model treats item as a random effect and should be a fixed effect.
Hmm. In Doran, Bates, Bliese and Dowling (2007), the authors treat the item as random. [snip]
Another question to ask is whether the Rasch model is appropriate. If an IRT is more sensible it would cause some problems with the second model.
Sorry, but I don't understand this at all.
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