[Rasch] Rasch Scoring

Juanito Talili talilij at yahoo.com
Tue Sep 20 18:36:22 EST 2011


What do you mean?  Which scenario has good information?


From: "Bond, Trevor" <trevor.bond at jcu.edu.au>
To: Juanito Talili <talilij at yahoo.com>; Rasch Forum <rasch at acer.edu.au>
Sent: Tuesday, September 20, 2011 3:58 PM
Subject: Re: [Rasch] Rasch Scoring


More, good information is always better that less, good information, Juanito.
TGB


On 20/09/11 5:49 PM, "Juanito Talili" <talilij at yahoo.com> wrote:


We are using Rasch model to develop our test questionnaire.  The end goal of our tests is to compute scores.  Assuming that after Rasch analysis using n=400 students, I arrived a math test questionnaire consisted of 50 items.  I will now administer the questionaire to another students (say 200) and then compute the scores for each of the students.  Two scenarios:
> 
>Scenario 1: Using n=400, I will save the person measures and item measures, then use such values to compute the scores of the 200 students.
>Scenario 2:  I will not use any values from the previous analysis.  Instead, I will just use the data obtained from the 200 students then run directly the winsteps.
> 
>Question:  Which scenario is the best practice in using Rasch Analysis?
> 
>Your comments are very important.
> 
>Thank you.
>Juanito 
>
>
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