Common use of Sampling Design Clause in Contracts

Sampling Design. The study design relied on probabilistic sample design for selection of households so as to ensure that every single household in the settlement area has a known and non-zero chance being selected into the survey sample. For the household survey, it is quite common to use circular systematic sampling (Systematic sampling is a probability sample selection method in which the sample is obtained by selecting every kth element of the population, where k=N/n, N is population and n is the sample size). The first sampling unit is selected randomly within the first k units of the list. This method for selection of households and the same has been followed in the present study.