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An Evaluation of Error Variance Bias in Spatial Designs

Author:
Williams, EmlynR., Piepho, Hans-Peter
Source:
Journal of agricultural, biological, and environmental statistics 2018 v.23 no.1 pp. 83-91
ISSN:
1085-7117
Subject:
agriculture, experimental design, field experimentation, variance
Abstract:
Spatial design and analysis are widely used, particularly in field experimentation. However, it is often the case that spatial analysis does not significantly 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 paper uses uniformity data to study error variance bias in [Formula: see text] spatial designs for 21 treatments.
Agid:
5893307