What's Wrong with Standardized Tests?
Are standardized tests
fair and helpful evaluation tools?
Not really. On
standardized exams, all test takers answer the same questions under the same
conditions, usually in multiple-choice format. Such tests reward quick answers
to superficial questions. They do not measure the ability to think deeply or
creatively in any field. Their use encourages a narrowed curriculum, outdated
methods of instruction, and harmful practices such as grade retention and
tracking.
Are standardized tests
objective?
The only
objective part of most standardized tests is scoring, when done by an
accurately programmed machine. Deciding what items to include on the test, how
questions are worded, which answers are scored as "correct,” how the test
is administered, and the uses of exam results are all made by subjective human
beings.
A test is
completely reliable if you would get exactly the same results the second time
you administered it. All tests have "measurement error." This means
an individual's score may vary significantly from day to day due to testing conditions
or the test-taker's mental or emotional state. Scores of young children and
scores on sub-sections of tests are particularly unreliable.
Do test scores reflect
significant differences among people?
Not
necessarily. The goal of most tests is to sort and rank. To do that, test
makers make small differences appear large. Questions most people get right or
wrong are removed because they don’t help with ranking. Because of measurement
error, two people with very different scores on one exam administration might
get similar scores on a retest, or vice versa. On the SAT, for example, two
students' scores must differ by at least 144 points (out of 1,600) before the
test’s sponsors are willing to say the students' measured abilities really
differ.
Don't test-makers remove
bias from tests?
Most
test-makers review items for obvious biases, such as offensive words. But many
forms of bias are not superficial. Test-makers also use statistical
bias-reduction techniques. However, these cannot detect underlying bias in the
test's form or content. As a result, biased cultural assumptions built into the
test as a whole often are not removed by test-makers.
Do tests reflect current
knowledge about how students learn?
Not at all.
While our understanding of the brain and how people learn and think has
progressed enormously, standardized tests have remained the same. Test
makers still assume that knowledge can be broken into separate bits and that
people learn by absorbing these individual parts. Today, cognitive and developmental
psychologists understand that knowledge is not separable bits and that people
(including children) learn by connecting what they already know with what they
are trying to learn. If they cannot actively make meaning out of what they are
doing, they do not learn or remember.
Do multiple-choice or
short-answer tests measure important student achievement?
These kinds of
tests are very poor yardsticks of student learning. They are weak measures of
the ability to comprehend complex material, write, apply math, understand
scientific methods or reasoning, or grasp social science concepts. Nor do they
adequately measure thinking skills or assess what people can do on real-world
tasks.
Are test scores helpful
to teachers?
Classroom
surveys show most teachers do not find scores from standardized tests scores
very useful. The tests do not help a teacher understand what to do next in
working with a student because they do not indicate how the student learns or
thinks. Nor do they measure much of what students should learn. Good evaluation
provides useful information to teachers.
How has “No
Child Left Behind” (NCLB) affected the use of standardized tests in the U.S.? NCLB
has led to a huge increase in testing. It requires state testing of every
student in grades 3-8 and once in high school, more than twice previous federal
mandates. NCLB also led to an explosion of other standardized exams,
including “benchmark” tests often administered 3-10 times per year. U.S.
students are now the most tested on Earth.
What is high-stakes
testing?
High-stakes
tests are used to make important decisions such as student promotion or
graduation, granting teacher tenure, or sanctioning schools for poor
performance. Twenty-six states now have graduation tests; some states and
districts have tests for grade promotion. NCLB attaches sanctions to test
results. Even though NCLB has failed to improve schools, policy makers continue
to expand high-stakes test uses such as “value-added” teacher evaluation.
What happens when tests
become high stakes?
High-stakes
testing often results in a narrow focus on teaching just the tested material
(test preparation). Other content in that subject as well as untested subjects
such as social studies, art and music are cut back or eliminated. High-stakes
testing also produces score inflation: scores go up, but students have not
learned more. Their scores are lower even on a different standardized test.
This undermines the meaning of test results as well as education.
What are other
consequences of high-stakes testing?
Attaching high
stakes to test results increases cheating and other efforts to boost scores
without improving educational quality. This can be done by arranging for
low-scoring students to be absent on test day or pushing them out of school,
often into the prison pipeline.
Are there better ways to
evaluate student achievement or ability?
Yes. Good
teacher observation, documentation of student work, and performance-based
assessment, all of which involve the direct evaluation of real learning tasks,
provide useful material for teachers, parents, and the public. Many nations
that do the best in international comparisons, like Finland, use these
techniques instead of large-scale standardized testing.


0 komentar:
Posting Komentar