In this experiment, each animal is measured more than once. Large plots of land are prepared using different fertilizers. Each large plot is divided into smaller plots which receive different varieties of wheat. In this experiment, there are two sizes of experimental units - large plots receiving fertilizers and smaller plots receiving variety. Honey bees colonies are arranged on pallets, three per pallet.
Interest lies in comparing a method of killing bee mites.
Three methods are used, and each pallet receives all three methods. In this experiment, there was not complete randomization because each pallet has to receive all three treatments. Five hives of each type are sampled and two samples are taken from each hive. In this experiment, two sub-samples are taken from each hive. The key point, is that there are many thousands of experiment designs.