[Biostat q]"expected effect size" for power

[MudPhud20XX]

FA says there are 3 ways to increase power = 1- beta = the probability of rejecting null hypothesis when it is false.

1. Increase sample size
2. Increase expected effect size
3. Increase precision of measurement

Can anyone explain #2? What do you mean by increase expected effect size?

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[OutOfTime8888]

Here's what Wikipedia says..
https://en.wikipedia.org/wiki/Effect_size

I don't understand it one bit..

 

[MudPhud20XX]

Here's what Wikipedia says..
https://en.wikipedia.org/wiki/Effect_size

I don't understand it one bit..

thanks man. has anyone encountered a q about this concept?