If an instrument has been translated into another language, there should be evidence:

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All three options are important when translating an instrument into another language. Without evidence of reliability and validity, the translated version of the instrument may not be measuring what it intends to measure. It's also important to ensure that the instrument has retained its meaning after being translated to avoid any misinterpretation of the data. The translated instrument should also be equivalent to the original to ensure that any differences in scores are due to true differences in the construct being measured and not due to differences in difficulty level or other factors.

If an Instrument Has Been Translated into Another Language, There