Statalist The Stata Listserver


[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]

Re: st: Item difficulty


From   "Jeremy Miles" <jeremy.miles@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Item difficulty
Date   Fri, 23 Mar 2007 09:31:56 -0700

The simplest way of thinking about this is that the difficulty is the
mean score.  The harder the item is, the fewer people will get it
right.

Usually when people are talking about item difficulty they are talking
about IRT.  There's more than one way to do IRT in Stata.  Type:

-findit irt-

To get some starters.

jeremy



On 23/03/07, Vanessa Mahlberg <vmahlberg@netcologne.de> wrote:
Hi everybody,

can anybody help me with the right stata command for calculating item
difficulty?
I donīt know the real English description for stata.

Thanks a lot for your support. Have a nice weekend

Vanessa
*
*   For searches and help try:
*   http://www.stata.com/support/faqs/res/findit.html
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/


--
Jeremy Miles
Learning statistics blog: www.jeremymiles.co.uk/learningstats

*
*   For searches and help try:
*   http://www.stata.com/support/faqs/res/findit.html
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/



© Copyright 1996–2014 StataCorp LP   |   Terms of use   |   Privacy   |   Contact us   |   What's new   |   Site index