試驗設計的正確使用

Abstract

電腦統計套裝軟體之普及化，對學術研究工作提供了方便、快速又計算準確的統計分析，然而根據多年來從事農業統計及試驗設計諮詢服務之工作經驗中發現，越是常用而簡單的統計方法，其被誤用及濫用的現象也最頻繁。為避免重蹈覆轍，農業研究工作者應該瞭解如何正確地使用試驗設計，才能對試驗結果進行適當之統計分析。對此，將針對以下重點加以說明：一、試驗設計的基本觀念與原則；二、農業上重要的試驗設計方法；三、合併數個試驗（例如合併年度、地區、季節等）的分析方法；四、連續不同時間重複測量（例如不同時期行多次收穫）的試驗；五、處理間的個別比較。 The use of computer software for statistical analysis is rapidly increasing in scientific research. During many years of statistical consultation in agricultural research, I found that misuses and abuses of the design and analysis of experiments still frequently occurred, even though the most common and simple analysis. For this reason, it is necessary to have knowledge of correct usage of experimental designs. This talk concentrates on five parts: 1. Basic concepts and principles of experimental design; 2. Important designs in agricultural experiments; 3. Combined analysis of experiments over years, locations or seasons; 4. Repeated measurement over time; 5. Comparisons between treatments.