Cluster Sample Size Calculator. All the sub-population members of the selected clusters. Enter parameters in the red cells.
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Of clusters re-estimates the total sample size as. Campbell MK Thomson S Ramsay CR MacLennan GS Grimshaw JM. A sample size calculator is presented for calculating appropriate sample sizes for cluster trials whilst allowing the implications of both methods of inflation to be considered.
ICC values between 001 and 06 were presented in steps of 001.
Mar 01 2004 Ten default cluster sizes 5 10 15 20 30 50 75 100 150 and 200 were chosen to represent a range of typical cluster sizes seen in health studies. Campbell MK Thomson S Ramsay CR MacLennan GS Grimshaw JM. Directions are provided within each file and more detailed information on calculating sample size and drawing a sample can be found in Part 2 Section 2. Here optimal means maximizing power for a given budget or minimizing total cost for a given power.
