[DDI-users] Variable representation

[Mary Vardigan]

Remi,

 

Regarding the multiple choice issue, I asked one of the original developers of Nesstar about this because I recalled that it came up. Here is what he said:

 

“I remember that we were looking for an elegant  DDI-solution for this, but we did not find one. It is really tricky as the only system independent way of storing multiple choice variables is as a group of individual variables. In fact what we did in Nesstar was to use the  variable group element as a container and one of the alternatives of the variable group type attribute to indicate that this was a multiple response group.”

 

Hope this is helpful.

 

Regards,

Mary

 

 

From: ddi-users-bounces at icpsr.umich.edu [mailto:ddi-users-bounces at icpsr.umich.edu] On Behalf Of Rémi Dewitte
Sent: Wednesday, April 15, 2009 5:56 AM
To: ddi-users at icpsr.umich.edu
Subject: [DDI-users] Variable representation

 

Hello,

I am going on working with DDI and here some of the questions I raised.

It is common for a numeric variable, say body height for a respondent, to also have some non-response codes defined. NumericRepresentationType does not allow to reference a code scheme. Where to write these codes ?

In our surveys, we have some "multichoice" questions, where do we write using DDI that the variable can have more than one values ? Sometimes the values are ordered, is there a place to say this ?

Thanks a lot,

Rémi

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://www.icpsr.umich.edu/pipermail/ddi-users/attachments/20090415/d0685f39/attachment.html