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Fwd: [eddra] tests
- To: ca-resisters@interversity.org
- Subject: Fwd: [eddra] tests
- From: Peter Farruggio <pfarr@cal.berkeley.edu>
- Date: Sat, 13 Jan 2007 14:47:45 -0800
Bracey's reply to a friendly academic who had asked for info about
good tests (he seemed to have standardized tests in mind)...
From: GERALD BRACEY <gbracey1@verizon.net>
Tom,
About 15 years ago, psychometrician Bob Mislevy wrote that it's not
too much of an exaggeration to say that the tests that dominate
education reflect 20th century statistics applied to 19th century
psychology. I might argue for 18th century because I see the hand
of the British Empiricists--Locke, Berkeley, Hume, that bunch. But
his point was and no doubt still is that tests don't reflect the way
people learn. Most psychometricians don't know much about cognitive
psychology. A study by Lorrie Shepard about 15 years ago indicated
that at the state and district level, people in charge of testing
had very naive theories about how learning occurs.
Partly, this lack stems from the history of testing. Testing as
developed by Yerkes, Terman, etc., was not about learning. It was
about discriminating. They wanted tests that would discriminate
among the testtakers because that was the only way they could make
differential predictions about those testtakers--which is what they
really wanted to do.
My gripe with NAEP is not with the tests themselves which probably
are among the best. It's with the achievement levels which are, in
addition to being arbitary, irrationally high.
Similarly, it is the condition of high stakes testing that is the
problem, not the tests. When Bob Linn took a 50 year retrospective
look at the use of tests to improve education he concluded that
little had been accomplished and the reason was that tests that were
adequate as monitors lost their validity when high stakes were
attached (Education Researcher, March 2000). This conclusion was
amplified in the monograph from Sharon Nichols and Dave Berliner
"The Inevitable Corruption of Indicators and Educators Through High
Stakes Testing." That will be out soon as a book, Berliner and
Nichols, Collateral Damage.
Jerry
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