On the History of ANOVA in Unbalanced, Factorial Designs: The First 30 Years

Abstract

The history of the analysis of unbalanced factorial designs is traced from Yates's original papers (Yates 1933, 1934) to the beginning of the computational revolution in the 1960s. Emphasis is placed on putting the methods proposed during this period in perspective in view of our present understanding.

Key Words:

• Nonorthogonal
• Fitting constants
• Least squares
• Weighted squares of means