Participation Rates and Harm Estimates Measure Different Things Introduction Gambling surveys often present two figures side by side: the proportion of people who gambled and the proportion experiencing gambling-related harm. They may seem like competing measures of the same behaviour, but they answer different questions. One measures how widespread gambling is; the other measures its consequences. Each also depends on its own question, denominator and method. This distinction matters when surveys are used to describe change. A rise in participation does not, by itself, show that harm has increased. Nor…
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