Cluster Sampling Sample Size Calculation. The total of the ith sampled cluster 2113. Cluster sampling is a method of probability sampling that is often used to study large populations particularly those that are widely geographically dispersed.
They then randomly select among these clusters to form a sample. DEFF1k-1ICC where k 30. The main aim of cluster sampling can be specified as cost reduction and increasing the levels of efficiency of sampling.
Directions are provided within each file and more detailed information on calculating sample size and drawing a sample can be.
The average cluster size in the sample. The STEPS Sample Size Calculator and Sampling Spreadsheet are Excel files that can assist you in first determining the size of your sample and then in drawing a sample from your sampling frame. DEFF 1 δ n 1 where DEFF is the design effect δ is the intraclass correlation for. Uses to calculate the unadjusted sample size for a binary outcome is 2 2 1 2 2 1 1 1 1 A B A A B B p p z q q z p p p p m α β where q pA pB 2.
