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 <[email protected]> wrote:
Hi everybody,
can anybody help me with the right stata command for calculating item
difficulty?
I don�t 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/
