2021 NCCC170 Annual Meeting

Stuart (1955) and Maxwell (1970) developed equivalent tests for marginal homogeneity in a two-way classification table where subjects are classified into categories by two separate methods (or judges). While the example used in the original Stuart paper involves ordinal categories, and the literature is full of examples where the Stuart-Maxwell test is applied to ordinal categories, the test itself makes no allowance for the ordinality of category levels, and in fact implicitly treats all category levels as nominal. More...

Incorporating measurements on correlated traits into genomic prediction models can increase prediction accuracy and selection gain. However, multi-trait genomic prediction models are complex and prone to overfitting which may result in a loss of prediction accuracy relative to single-trait genomic prediction. More...

Progress update on “SAS for Mixed Models”, 3rd edition, 2nd volume titled “Advanced Applications” by Milliken, Claassen, Wolfinger and Stroup. Recent developments and proposed strategies to move forward. More...