Model 1: In designs without full replication, an ANOVA model that assumes the presence of block-by-treatment interactions, even though the design has not allowed for their estimation. Randomised-block designs may be analysed by Model 1 or Model 2. Repeated measures designs are generally analysed by Model 1.

Doncaster, C. P. & Davey, A. J. H. (2007) Analysis of Variance and Covariance: How to Choose and Construct Models for the Life Sciences. Cambridge: Cambridge University Press.

http://www.southampton.ac.uk/~cpd/anovas/datasets/