Test-Retest Reliability measures “the replicability of results.”.Here are three types of reliability, according to The Graide Network, that can help determine if the results of an assessment are valid: Deviations from data patterns and anomalous results or responses could be a sign that specific items on the exam are misleading or unreliable. What Makes a Reliable Assessment?įor an exam or an assessment to be considered reliable, it must exhibit consistent results. It is essential that exam designers use every available resource - specifically data analysis and psychometrics - to ensure the validity of their assessment outcomes. Poorly written assessments can even be detrimental to the overall success of a program. Invalid or unreliable methods of assessment can reduce the chances of reaching predetermined academic or curricular goals. How to Measure Test Validity and Reliability
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