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How do isotopes of an element differ?
Valid
A concept that refers to the accuracy and reliability of data or findings, ensuring they measure what they are supposed to.
Test Administrations
The process or manner in which exams or assessments are given to evaluate participants' knowledge, skills, or abilities.
Reliable
Describes something dependable and consistent in quality or performance.
Clinical Trials
Research studies performed in people that are aimed at evaluating a medical, surgical, or behavioral intervention.
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