power sample size calculation
Sample Size Calculator
Instructions: Complete the fields in green with the necessary information. Then read through the steps below to attain your final sample size.
| Level of Confidence Measure | 1.96 | Describes the level of uncertainty in the sample mean or prevalence as an estimate of the population mean or prevalence. Recommended value: 1.96 (for 95% confidence level) |
| Margin of Error (MOE) | 0.05 | The expected half-width of the confidence interval. The smaller the margin of error, the larger the sample size needed. Recommended value: 0.05 (for small baseline levels, e.g. <.10, a smaller MOE of 0.02 or 0.01 is appropriate) |
| Baseline levels of the indicators | 0.5 | The estimated prevalence of the risk factors within the target population. Values closest to 50% are the most conservative. Recommended value: 0.5 if no previous data on population, else value closest to 0.5 from previous data |
| Design effect (Deff) | 1.5 | Describes the loss of sampling efficiency due to using a complex sample design. A value of 1.0 is appropriate for simple random samples.Recommended value: 1.5 (for most STEPS surveys) |
| Expected Response Rate | 0.8 | The anticipated response rate. Recommended value: enter response rate from previous national/subnational household surveys, else use 0.8 as an estimate |
| Number of age/sex Estimates | 8 | The number of age-sex groups for which estimates will be calculated. If age-sex estimates are desired for specific states/regions/island, multiply the number of age-sex groups by the number of states/regions/islands to attain the total number of estimates desired. |
Get a Data Analysis Template for Statistical Related Services
[contact-form-7 id="437" title="Newsletter Template"]
