Completely randomized method

…(3) Local control Let us consider a case where three treatments are performed three times each over three days. In this case, a completely randomized method in which the allocation of each treatment is randomized overall is often used to satisfy the principles of (1) and (2). However, since this experiment is conducted over three days with three shifts per day, the systematic error associated with the time sequence consists of day-to-day variation and within-day variation. …

*Some of the terminology used to refer to the "completely randomized method" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…(3)局所管理　いま3通りの処理を3日間にわたって各3回ずつ実施する場合を考える。このとき(1)(2)の原則をみたすものとして各処理の割付けを全体として無作為に行う完全無作為化法がよく使われる。しかしこの実験は1日3交替で3日間かけて行うので，時間的順序に伴う系統誤差は日間変動と日内変動から成る。…

※「完全無作為化法」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報