[問題] 統計上的問題
請問板上的各位專家
收到reviewer的建議如下，我有實驗組與對照組，是要比對實驗前兩組的差異嗎??
Was an analysis done to determine the number of participants
required in each test group in order to determine if statistical
differences existed between groups? If so, please include this
information. If not, please explain why not, and state how
sample sizes were determined.
懇請幫忙，謝謝
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