An Evaluation of Error Variance Bias in Spatial Designs

Spatial design and analysis are widely used, particularly in field experimentation. However, it is often the case that spatial analysis does not enhance more traditional approaches such as row-column analysis. It is then of interest to gauge the degree of error variance bias that accrues when a spatially-designed experiment is analysed as a row-column design. This talk builds on the work of Tedin (1931) who, with R.A. Fisher as advisor, studied error variance bias in knight’s move Latin squares.