What account for Reliability and Validity in research?

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Hi. Can the absorption measurements of a polymer in a solvent be considered reliable when using a spectrophotometer?

zzz

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Gershom Sackey

Reliability is the degree to which an assessment tool produces stable and consistent results whereas Validity refers to how well a test measures what it is purported to measure.

Aaron Agbenyegah Bedzo

Thanks so much for your response Gershon

Perpetual Ofori Abankwa

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Patrick Baiden

Interesting question following

Sharon Samevi

Interesting