Reliability is the degree to which an assessment tool produces stable and consistent results. Types of Reliability. Test-retest reliability is a measure of reliability obtained by administering the same test twice over a period of time to a group of individuals.
"it is the function of a fixed of check rankings that relates to the quantity of random error from the measurement technique that might be embedded inside the scores. ratings that are notably dependable are specific, reproducible, and regular from one checking-out event to some other. that is, if the checking out procedure had been repeated with a group of test takers, essentially identical consequences could be acquired. various types of reliability coefficients, with values ranging among 0.00 (plenty error) and 1.00 (no mistakes), are typically used to signify the quantity of blunders within the scores."
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