Question

(b) is estimation a reliable way of measurement?
Support your answer by two examples.​

Answer 1

Estimating, it is important that our estimation be as accurate as possible. ... The first arises from the estimating process itself, while the second is due to the precision of the measuring device. Estimating: In the present case the simplest estimate is to assign a value half way along the interval.

For example: Test- retest reliability

Interrater reliability

Parallel froms reliability

Internal consistency

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Answer 2

Unfortunately, there is no way to directly observe or calculate the true score, so a variety of methods are used to estimate the reliability of a test. Some examples of the methods to estimate reliability include test-retest reliability, internal consistency reliability, and parallel-test reliability.