HIV Test

explore the base rate, sensitivity, and specificity

Still with circles, not icons. 1000 cases.

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Märchenland

explore princesses and mermaids—and their crowns

Now with icons! 100 cases.

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Märchenland Redux

explore princesses and mermaids—and their crowns, limited numbers, better for younger students

Now with icons and trees! 100 cases.

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Risk Reduction: Bicycle Helmets

Wearing a helmet makes you safer.

Only certain numbers. Up to 50 cases per group.

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Risk Reduction: Lipitor

What does it mean that Lipitor reduces your risk of a heart attack?

Maximum flexibility. Up to 100 cases per group.

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