Validity, Reliability, and Quality Assurance
نویسنده
چکیده
“In most cases, reasonable prudence is in fact common prudence; but strictly it is never its measure; a whole calling may have unduly lagged in the adoption of new and available devices. It never may set its own tests, however persuasive be its usages. Courts must in the end say what is required; there are precautions so imperative that even their universal disregard will not excuse their omission. ”
منابع مشابه
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