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Table 2 GeDI scenarios and associated items

From: Testing validity inferences for Genetic Drift Inventory scores using Rasch modeling and item order analyses

Scenario Items Example
1 1–8 Small subpopulation of land snails colonize a new island
2 9–11 Dung beetles geographically isolated by canals
3 12–18 Biologist randomly selects fruit flies to breed in captive populations
4 19–22 Nearsighted island population of humans before and after a devastating storm