Tuesday, March 22, 2016

Topic 3: Reliability, Validity and Other Desired Characteristics of Measurement


The meaning of:

  1. Reliability     -     The ability to measure the same thing consistently of a measurement indicating the degree to which the measures consistent); that is repeated measurements would give the same result.
  2. Validity         -     A quality of measurement indicating the degree to which the measure       reflects the underlying construct, that is, whether it measures what it purports to measure. It also mean the state of being valid, authentic or genuine.



I use this picture to have more understanding about reliability and validity.

The importance of reliability and validity.





2 comments:

  1. To define and discuss about reliability and validity sometimes are very confusing right? Thank you for giving out a broad explanation about the topics, I hope you will be implemented your knowledge to your assessment towards young children and bring them to another higher level of their performance.

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    Replies
    1. Yes. It still make me confused when people ask me about the differences. But luckily i can still explain it to them even though there is a little wavering.

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