STUDENT
ASSESSMENT: THE ELUSIVE SCORE
Schools
assess learners for many reasons, including the important
diagnostic task of identifying what learners know so that
individual learning goals can be developed and
implemented.
Other kinds
of assessment measure students' progress against their
own earlier work, against other students' work, or
against a standard.
Assessment
standards can be applied to many situations -
sometimes productively and sometimes not. Test results
are used to measure how well students are meeting
achievement standards established by the district.
Some tests
are used to decide who will earn course credit and to
determine who will move on to the next grade or earn a
diploma. And, as we well know, test scores are often used
- by politicians, the public and educators
themselves
- to compare schools and school districts.
As
professionals and citizens concerned with education, we
all need a better basic knowledge of the different types
of tests and their proper uses. This is important because
even though most tests are neither good nor bad in
themselves, misuse of tests can cause great harm.
First,
there are two basic kinds of achievement tests:
norm-referenced tests, which show how well students
perform compared to other students around the country,
and criterion-referenced tests, which show how well
students perform against a pre-established standard.
Norm-referenced
tests are usually designed by testing companies, are used
to test thousands of students each year, and include
questions that range in difficulty.
Students
are not expected to answer all the questions correctly.
Test results are interpreted by looking at the relative
scores of all those taking the test and typically
reported in percentiles.
The persons
with the best scores will be at the top of the chart,
sometimes no matter how many questions were left
unanswered.
The
well-known ITBS, or Iowa Test of Basic Skills, is a
norm-referenced test.
Criterion-referenced
tests are usually shorter tests designed to find out
specific information such as whether students understand
a process, possess a certain skill, or have mastered a
particular body of knowledge.
These tests
do not typically judge one student against another;
instead, scores are measured against performance criteria
designed to measure identified concepts and skills.
The GHSGT,
or Georgia High School Graduation Tests, are
criterion-referenced tests.
Standardized
tests are criticized on a number of grounds. The most
serious complaint is that multiple choice and
short-answer questions ask for simple factual recall and
do not adequately reveal a student's abilities in
critical analysis, conceptual understanding, or the
ability to apply newly learned principles to an
unfamiliar situation.
These are
higher-order thinking skills, an extremely important part
of what students should be taught, but they typically are
not measured well by standardized tests, whether
norm-referenced or criterion-referenced.
In
addition, standardized tests do not reflect
responsiveness to specifics of local curriculum. The
biggest misuse of standardized tests, however, is their
tendency to be used to compare schools and school
systems.
Due to the
growing concern regarding the shortcomings of
standardized tests, many educators encourage a movement
toward a more "authentic" assessment tool which
will gauge students' performance on real-world
challenges.
This type
of performance-based testing can take various forms such
as projects based on performance tasks and portfolios of
their work over time. These types of assessment could
provide a more accurate picture of students' mastery of
what is actually being taught, providing credible
evidence of what students know and are able to do.
It is,
however, much easier said than done. There are, in fact,
pros and cons to all forms of assessment.
As
professional educators, we understand there is no single
best approach to student assessment. The best approach is
to include a variety of types of assessment at different
times and with different groups of learners to serve
different purposes.
We also
realize that, whatever our plan of assessment, two
realities will occur: first, any assessment will likely
be criticized; second, the public will demand benchmarks
to indicate how well we are doing.
Whether
right or wrong, for better or worse, schools are judged
assess our assessment, and we keep our eyes on the
educational horizon, ready to change if necessary to do
our best for our students.
In this
way, we can continue to make Coweta County a place where
good schools are a great investment.







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