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st: item response


From   [email protected]
To   [email protected]
Subject   st: item response
Date   Sun, 6 Jul 2003 22:25:18 -0400 (EDT)

Hi,

I am trying to create a weight variable to use with the gllamm command,
but I just can't get it to work. Here is the problem: I have the data in
long format looking like this:

subj_id         item_number     item_response
1               1               0
1               2               1
1               3               0
2               1               1
2               2               1
2               3               0

I am trying to create a weight variable that represents the number of
subjects with the same item_response pattern, meaning the same responses
for all items within an individual.

I would appreciate any suggestions.

Thanks,

Deng

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