Sleeping pills linked to cancer, early death
WASHINGTON - A new study suggests that the 6 to 10 percent of Americans who use prescription sleep medications such as zolpidem (Ambien), eszopiclone (Lunesta) and zaleplon (Sonata) are more likely t…
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WASHINGTON - A new study suggests that the 6 to 10 percent of Americans who use prescription sleep medications such as zolpidem (Ambien), eszopiclone (Lunesta) and zaleplon (Sonata) are more likely t…
盲法試驗(blinded experiment)是科學方法的一種,指的是在研究過程中對分組(對照組、實驗組)等情況進行保密。目的是避免研究結果受安慰劑效應或觀察者偏向所影響。在各種科學研究領域中,從醫學、食品、心理到社會科學及法證都有使用盲法進行實驗。不使用盲法的實驗叫做開放標籤試驗。 在漢語(和較老或非正式的英語文獻)中,習慣以單盲、雙盲、三盲區分盲法執行的程度,一般分別指代對受試者、研究人員、
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