ELI5: Explain Like I'm 5

Factorial experiment

Imagine you are playing with blocks and you have a bunch of different colors and sizes. You want to figure out which blocks work best together to make the biggest tower.

In a factorial experiment, you are doing the same thing but instead of blocks, you are using different things like time, temperature, or ingredients. And instead of a tower, you are trying to figure out what combination of these things makes something work best.

For example, let's say you are baking a cake and you want to know what makes it taste the best. You might try different combinations of ingredients (like sugar, flour, eggs, and butter) and different baking temperatures and times.

In a factorial experiment, you would try every possible combination of all these things. So you might try baking a cake with:
- High sugar and high flour, baked at a low temperature for a long time
- Low sugar and low flour, baked at a high temperature for a short time
- High sugar and low flour, baked at a high temperature for a long time
- And so on...

By trying every combination, you can see which one makes the best cake. It's like trying every possible combination of blocks to make the biggest tower.

Factorial experiments are used in lots of different fields, from cooking to science to manufacturing. They help us figure out the best way to do something by trying every possible combination of factors.