THE NATURE OF EDUCATIONAL ASSESSMENT
What is the definition of Measurement, Assessment, and Evaluation?
Measurement
It is the process by which the attributes or dimensions of some physical object are determined. One exception seems to be in the use of the word measure in determining the IQ of a person.
The phrase, "this test measures IQ" is commonly used. Measuring such things as attitudes or preferences also applies. However, when we measure, we generally use some standard instrument to determine how large, tall, heavy, voluminous, hot, cold, fast, or straight something actually is.
Standard instruments refer to physical devices such as rulers, scales, thermometers, pressure gauges, etc. We measure to obtain information about what is. Such information may or may not be useful, depending on the accuracy of the instruments we use, and our skill at using them.
The word measurement, as it applies to education, is not substantially different from when it is used in any other field. It simply means determining the attributes or dimensions of an object, skill or knowledge. We use common objects in the physical world to measure, such as tape measures, scales and meters.
These measurement tools are held to standards and can be used to obtain reliable results. When used properly, they accurately gather data for educators and administrators. Some standard measurements in education are raw scores, percentile ranks and standard scores.
Assessment
It is a process by which information is obtained relative to some known objective or goal. Assessment is a broad term that includes testing. A test is a special form of assessment. Tests are assessments made under contrived circumstances especially so that they may be administered. In other words, all tests are assessments, but not all
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