Information by Design
Lifestyle Survey Toolkit

Sampling Sizes

The sample size in lifestyle surveys vary considerably. Some are small (around 1-2,000 responses), some larger (around 5,000 responses) and some very large (over 20,000 responses). The sample size usually depends on:
  • the need for data at either regional, local authority or lower level
  • desired accuracy (if this known)
  • costs or available budget.
Clearly, there is a trade-off between sample size and costs. The survey costs for a survey of 1,000 responses may be around 10,000; for 5,000 responses this may increase to around 40,000. for an illustration of the trade-off between sample sizes and costs in a postal survey click here.

For more background information on estimating sample sizes in surveys generally click here.