Figure 5From: Epidemiological Studies Based on Small Sample Sizes – A Statistician's Point of ViewThe design for Example 3: 'Nematodes in sows and piglets'. This is an experimental study using a two-way factorial design (one factor with 3 infection levels for the sows, one factor with 2 infection levels for the piglets). Furthermore, the structure is nested (sows are nested within treatments, and piglets are nested within sows).Back to article page