In other words, it is a reliable instrument that produces consistent results, regardless of who administers it, when it is administered, and under what conditions it is administered. A measurement instrument is considered reliable if it consistently produces the same results when it is used repeatedly to measure the same thing. ![]() Reliability refers to the consistency or stability of a measurement over time or across different raters. Both data reliability and validity are crucial in research, as they ensure that the results obtained are accurate, consistent, and trustworthy. ![]() Data reliability and validity are two important concepts in research that are used to assess the quality of data collected. ![]() Researchers need to ensure that their research instruments are both reliable and valid before using them to collect data.
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