Then what is the validity of the instrument?

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Discussion thread: Family and Child Welfare Services

Kwong

30 November 2023

Then what is the validity of the instrument?

Then what is the validity of the instrument?

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Jeo

30 November 2023

You are welcome.

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Kwong

30 November 2023

OK, I see. Thank you.

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Jeo

30 November 2023

First, you cannot have a valid instrument unless the instrument is reliable. Validity reflects the extent to which any measuring instrument measures what it is designed to measure. Validation refers to the inferences made based on scores obtained on a measure. We validate not the measuring instrument itself but the measuring instrument in relation to the purpose for which it is being used.

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