Logic / Unit 7 Logic 337 short lesson, about 20 seconds
Method of Difference
Captions available
The idea
If two cases differ in the effect and in exactly one factor, that factor is implicated.
In practice
Identical trays, one with the sauce, one without; one diner sick. The controlled experiment, in embryo.
Where people slip
The power is proportional to how truly "otherwise identical" the cases are. In the wild, they rarely are.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Builds on
Unlocks
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