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A good research tool is one that effectively collects accurate and relevant data required to achieve the objectives of a study. One of its most important characteristics is validity, which means the tool should measure exactly what it is intended to measure. If a research tool lacks validity, the data collected will be misleading and the findings will not be meaningful. Closely related to validity is reliability, which refers to the consistency of ___ __________ ____ ____ _____ ______.
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