Ideally, however, students should be subject to a wide variety of tests to paint a clearer picture of their proficiency. Norm-based tests provide an idea of how well a student has performed in relation to peers with a similar educational background; subjective tests can reveal creativity or talents not scored on a standardized test.
Q3. The validity coefficient is calculated in terms of whether the content of what is being tested (such as intelligence) is comprehensive enough; if the 'face' or surface validity meets a commonsensical test; if the construct of the test (such as how intelligence is defined) is valid; and if the outcomes of the test are supported by other, existing measures of validity (criterion-based validity).
Q4.
A reliable test produces the same results on a consistent basis, when it is administered to the same test population. If the same person, or people with similar backgrounds and demographic information, gets the same score...
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