Generalizing: Disconfirming Instances

Rule #2: We should look for disconfirming as well as confirming instances of a generalization.

We should actively look for counterexamples: Ss that are not P. If we have looked hard for negative instances and haven't found any, we can be more confident of a generalization than we can if we haven't looked at all.


To continue with the previous example, we should look for Toyota owners who are satisfied with their cars.

Sample size and variety | Disconfirming instances |
Sensible links between S and P

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