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Ecological Fallacy

Meaning

The Ecological Fallacy represents a logical error in statistical inference where conclusions about individuals are improperly drawn from data collected at an aggregate or group level. It occurs when one assumes that characteristics observed for a group, such as a population or community, apply uniformly to every individual within that group, disregarding individual variability. For instance, if a region exhibits a high average prevalence of a specific hormonal imbalance, it does not automatically mean every resident in that region shares that imbalance.