你即將離開本站

並前往https://www.khanacademy.org/math/statistics-probability/designing-studies/types-studies-experimental-observational/a/observational-studies-and-experiments

Observational studies and experiments (article) | Khan Academy

In an observational study, we measure or survey members of a sample without trying to affect them. · In a controlled experiment, we assign people or things to ...

確定！ 回上一頁

查詢 「Observational study」的人也找了：

  1. observational study定義
    2.
  2. observational study中文
    3.
  3. Observational study
    4.
  4. observational study vs experimental study中文
    5.
  5. Observational study vs experimental study
    6.
  6. observational中文
    7.
  7. Clinical trial observational study
    8.
  8. Case-control study
    9.