![]() To accurately assess the reliability of TI’s products, we use accelerated stress test conditions during qualification testing. ![]() In such cases, CNSs should engage key stakeholders to sponsor nursing researchers to pursue this most important work. Every organization in TI works together to ensure quality and to deliver reliable products, and we are committed to continuously improving our products and process technologies toward that end. Clinical nurse specialists may find themselves in situations where reliability and validity estimates for some instruments that are being utilized are unknown. All CNSs should be advocating for the use of reliable instruments that produce valid results. Many instrument developers may conduct reliability testing only once, yet continue validity testing in different populations over many years. For example, if a specific group does not understand certain well-constructed items, then the instrument does not produce valid scores when used with that group. An instrument may be architecturally sound overall (reliable), but the same instrument may not be valid. Reliability estimates explain more about how well the instrument is designed, whereas validity estimates explain more about scores that are produced by the instrument. Psychometric testing uses specific research methods to evaluate the amount of error associated with any particular instrument. It is important for CNSs and other APNs to consider the reliability and validity of instruments chosen for clinical practice, evidence-based practice projects, or research studies.
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