[Author Prev][Author Next][Thread Prev][Thread Next][Author Index][Thread Index]

Re: More intersting revelations from EdTrust


  • Subject: Re: More intersting revelations from EdTrust
  • From: Susan Harman <susanharman@IGC.ORG>
  • Date: Mon, 7 Jan 2002 22:43:51 -0800
  • Reply-to: Assessment Reform Network Mailing List <ARN-L@LISTS.CUA.EDU>
  • Sender: Assessment Reform Network Mailing List <ARN-L@LISTS.CUA.EDU>

Do they change the test from admin to admin/year to year? Have they made
it easier over the years? These are high p values; were they always?
Susan
>
>
> The "p value" or "item difficulty" is the percentage of test-takers who get the item right. So an item with a p value of 0.20 would be a relatively hard item.
>
>
>
> Would a test with no item under, say, .55 be a reasonable test? I am not sure I can phrase this question. I have the p values of the SOL tests for last year. On initial scan,
> most questions have p values of .60 and up. Many questions are .85 and up.
> Should I be comparing mean p-values from test administration to test administration?
> Mickey

--------------------------------------------------------------------------
To unsubscribe from the ARN-L list, send command SIGNOFF ARN-L
to LISTSERV@LISTS.CUA.EDU.


Post a Message to arn-l:

Your name:

Your email address: (use the exact address you are subscribed with)

Subject line:

Message: