| |
 |
|
|
Science Forum Index » Statistics - Education Forum » What is general item response model??
Page 1 of 1
|
| Author |
Message |
| item |
 Posted: Thu Feb 14, 2008 3:50 pm |
|
|
|
Guest
|
I have a question, what is general item response model?? why is it
like this, prob (answer=True) = Link function (a,b,c;theta)?? I'm just
confused why it models the probability not the mean or etc?? since as
far as I know the GLM is modelling the mean (in the left side)..
Thanks very much for the attention and the answer =) |
|
|
| Back to top |
|
| Ray Koopman |
| Posted: Thu Feb 14, 2008 11:54 pm |
|
|
|
Guest
|
On Feb 14, 5:50 pm, item <sTa4poin...@gmail.com> wrote:
Quote: I have a question, what is general item response model?? why is it
like this, prob (answer=True) = Link function (a,b,c;theta)?? I'm just
confused why it models the probability not the mean or etc?? since as
far as I know the GLM is modelling the mean (in the left side)..
Thanks very much for the attention and the answer =)
For a dichotomous item with 0,1 scoring, the probability of a '1' is
the mean. For other types of items, modeling the probability of each
alternative is more informative than modeling some summary parameter. |
|
|
| Back to top |
|
| |
|
Page 1 of 1
All times are GMT - 5 Hours
The time now is Tue Oct 07, 2008 2:30 pm
|
|