A survey needs to involve how many people before I'm convinced?
- Written by Adrian Barnett, Professor of Public Health, Queensland University of Technology
The survey results are in, but do they say anything meaningful?Shutterstock/create jobs
Research studies, opinion polls and surveys all rely on asking a number of people about something to try to extract some pattern of behaviour or predict a result.
But how many people do you need to ask for that finding to have any convincing meaning?
Before any...
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