What Is the Difference Between Validity and Reliability?

By Staff WriterLast Updated Mar 26, 2020 8:01:46 PM ET
difference-between-validity-reliability
Phil Roeder/CC-BY 2.0

In an experiment, reliability signals how consistently the experiment produces the same results while validity signals whether the experiment measures what it is intended to measure. An experiment's reliability does not offer any information about its validity.

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