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Re: More intersting revelations from EdTrust
- Subject: Re: More intersting revelations from EdTrust
- From: William Cala <Wcala@SERVTECH.COM>
- Date: Thu, 3 Jan 2002 16:07:30 -0500
- Reply-to: Assessment Reform Network Mailing List <ARN-L@LISTS.CUA.EDU>
- Sender: Assessment Reform Network Mailing List <ARN-L@LISTS.CUA.EDU>
Allen,
Just can't figure out what's wrong with this. I have Acrobat. I open pdf all the time. I got an "access denied" on this link as well.
Bill
----- Original Message -----
From: Allen Flanigan.
To: ARN-L@LISTS.CUA.EDU
Sent: Thursday, January 03, 2002 11:43 AM
Subject: Re: More intersting revelations from EdTrust
Bill,
The link I gave is to a PDF file, so if you don't have acrobat reader "hooked up" to your browser (so that it automatically opens pdf file addresses in acrobat reader) you might not be able to go directly to that address.
Try going to this link:
http://64.224.125.0/dtm/
and clicking on "instructions", then on "important cautions". You will still need acrobat reader to open the file.
You can also see a similar disclaimer under the "read me" link.
[Flanigan, Allen] -----Original Message-----
From: Wcala@SERVTECH.COM [
mailto:Wcala@SERVTECH.COM]
Sent: Thursday, January 03, 2002 7:04 AM
To: ARN-L@listsrva.CUA.EDU
Subject: Re: More intersting revelations from EdTrust
Allen,
The URL you listed doesn't work. The message I got was "Unresolved IP address". I'd like to find the statement you cited as it came through somewhat messed up.
thanks
Bill
----- Original Message -----
From: Allen Flanigan.
To: ARN-L@LISTS.CUA.EDU
Sent: Wednesday, January 02, 2002 12:30 PM
Subject: More intersting revelations from EdTrust
Sorry for multiple postings, but the more I weed through this "dispelling the myth" report, the more interesting stuff I find.
We have had a few discussions about the alleged differences between norm-referenced and criterion or standards-referenced tests (most recently George C. and I traded messages about CRTs, NRTs, Standards-referenced Tests, etc.)
My suspicion that State tests commonly referred to as "criterion-referenced", or Standards-referenced, are little different from off-the shelf NRTs in their construction and in the items used therein is confirmed by this statement from EdTrust's website:
http://64.224.125.0/dtm/popups/tutorial.dtm.pdf
Criterion-Referenced and Norm-Referenced Tests
Much confusion surrounds the use of these terms. In general, a norm-referenced
test compares a studentTs performance on the exam with the performance of
other students on the same test. Criterion-referenced tests and standards-based
tests measure a studentTs performance against external criteria for evaluating the
extent to which a student has mastered the material covered on the test. There
are two main ways these differences come into play.
First, many experts believe that test questions are chosen differently depending
on which kind of test is being created. Since the goal of norm-referenced tests is
essentially competitive, questions that all or most students answer correctly are
weeded out in favor of questions that only some students answer correctly. In
contrast, experts constructing criterion-referenced tests are supposed to focus
primarily on whether the test question is aligned with the knowledge and skills the
test is intended to measure. If all students answer a question correctly, it should
mean that teachers are doing a good job teaching that particular part of the
curriculum.
Second, student performance on different kinds of tests is often reported using
different kinds of scores. For example, while the results of norm-referenced tests
often are reported in the form of ifpercentile rank,le the results of criterion-
referenced tests often are reported using some variation on inpercent passinglt (or
iaproficientle or irmeeting standardle). The percentile score tells you where a
schoolTs average student performs compared with a nationally representative
sample of students, whereas percent proficient tells you what percent of a
schoolTs students met the stateTs benchmark for mastering the material covered
on the test.
However, in practice these distinctions blur. Many companies that traditionally
have sold generic norm-referenced tests now help states build iucustomizedle tests
that are meant to measure whether students are meeting the stateTs own unique
academic standards. Often, however, the companies create such tests using the
same set of questions (or iobank of test itemslo) that they also use to construct
their more generic norm-referenced exams, with the result that such customized
tests can end up looking much like the companyTs iooff the shelfly norm-referenced
tests! Also, more and more, a single test can be used to yield widely different
kinds of scores, from simple scale scores to norm-referenced percentile ranks to
criterion-referenced percentages of students meeting state standards.
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