Re: Treating Ordinal Data as Continuous

Posted by statisticsdoc on Jan 10, 2007; 12:40pm
URL: http://spssx-discussion.165.s1.nabble.com/Treating-Ordinal-Data-as-Continuous-tp1073024p1073026.html

Laurie,

IRT = Item Response Theory.

Here is a good website to get started (including references):

http://edres.org/irt/

Here is a tutorial from the University of Illinois IRT lab:

http://work.psych.uiuc.edu/irt/tutorial.asp

Cheers,

Stephen Brand

For personalized and professional consultation in statistics and research
design, visit
www.statisticsdoc.com


-----Original Message-----
From: SPSSX(r) Discussion [mailto:[hidden email]]On Behalf Of
Laurie Petch
Sent: Wednesday, January 10, 2007 5:47 AM
To: [hidden email]
Subject: Re: Treating Ordinal Data as Continuous


Many thanks to all those who replied to this thread on and off list. This
list is a mine of useful information,
populated by some very skillful miners! I think I have read all the messages
in this thread, though it's a little difficult
to navigate the digest with the browser I am using.

Please can anyone tell me what IRT stands for and offer some references on
how to go about it, in relation to a
previously constructed scale?

with thanks,

Laurie
---------

Laurie Petch
Chartered Educational Psychologist (British Psychological Society)

Regina, Canada