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Performance assessment is
a viable alternative to norm-referenced tests. Teachers can use performance
assessment to obtain a much richer and more complete picture of what students
know and are able to do.
DEFINING PERFORMANCE ASSESSMENT
Defined by the U.S. Congress, Office of Technology Assessment (OTA) (1992),
as "testing methods that require students to create an answer or product
that demonstrates their knowledge and skills," performance assessment
can take many forms including:
- Conducting experiments.
- Writing extended essays.
- Doing mathematical computations.
Performance assessment is
best understood as a continuum of assessment formats ranging from the
simplest student-constructed responses to comprehensive demonstrations
or collections of work over time. Whatever format, common features of
performance assessment involve:
- Students' construction
rather than selection of a response.
- Direct observation of
student behavior on tasks resembling those commonly required for functioning
in the world outside school.
- Illumination of students'
learning and thinking processes along with their answers (OTA, 1992).
- Performance assessments
measure what is taught in the curriculum. There are two terms that are
core to depicting performance assessment:
- Performance: A student's
active generation of a response that is observable either directly or
indirectly via a permanent product.
- Authentic: The nature
of the task and context in which the assessment occurs is relevant and
represents "real world" problems or issues.
HOW DO YOU ADDRESS VALIDITY
IN PERFORMANCE ASSESSMENTS?
The validity of an assessment depends on the degree to which the interpretations
and uses of assessment results are supported by empirical evidence and
logical analysis. According to Baker and her associates (1993), there
are five internal characteristics that valid performance assessments should
exhibit:
- Have meaning for students
and teachers and motivate high performance.
- Require the demonstration
of complex cognition, applicable to important problem areas.
- Exemplify current standards
of content or subject matter quality.
- Minimize the effects of
ancillary skills that are irrelevant to the focus of assessment.
- Possess explicit standards
for rating or judgment.
When considering the validity
of a performance test, it is important to first consider how the test
or instrument "behaves" given the content covered. Questions should be
asked such as:
- How does this test relate
to other measures of a similar construct?
- Can the measure predict
future performances?
- Does the assessment adequately
cover the content domain?
It is also important to review
the intended effects of using the assessment instrument. Questions about
the use of a test typically focus on the test's ability to reliably differentiate
individuals into groups and guide the methods teachers use to teach the
subject matter covered by the test.
HOW CAN TEACHERS
INFLUENCE STUDENTS' PERFORMANCES?
Performance assessment is a promising method that is achievable in the
classroom. In classrooms, teachers can use data gathered from performance
assessment to guide instruction. Performance assessment should interact
with instruction that precedes and follows an assessment task.
When using performance assessments,
students' performances can be positively influenced by:
- Selecting assessment tasks
that are clearly aligned or connected to what has been taught.
- Sharing the scoring criteria
for the assessment task with students prior to working on the task.
- Providing students with
clear statements of standards and/or several models of acceptable performances
before they attempt a task.
- Encouraging students to
complete self-assessments of their performances.
- Interpreting students'
performances by comparing them to standards that are developmentally
appropriate, as well as to other students' performances.
REFERENCES
Baker, E. L., O'Neill, H. F., Jr., & Linn, R. L. (1993). Policy and validity
prospects for performance-based assessments. American Psychologist, 48,
1210-1218.
U.S. Congress, Office of
Technology Assessment. (1992, February). Testing in American schools:
Asking the right questions. (OTA-SET-519). Washington, DC: U.S. Government
Printing Office.
Derived from: Elliot, S.
N. (1994). Creating Meaningful Performance Assessments: Fundamental Concepts.
Reston, VA: The Council for Exceptional Children. Product #P5059.
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