Background:You are studying food insecurity in a rural area of Uganda where you would like to implement a food security program at village level. However, you believe that villages may differ in their degree of household food insecurity. You randomly select 20 villages in your target area, and in each village, you randomly select 5 households. In each household, you measure food insecurity using a questionnaire that allows you calculate a household food insecurity score in which 0=food secure and 27=very food insecure [this is the HFIAS score, developed by the FANTA Project].