Under what circumstances can a very small treatment effect can still be significant? A)if the sample size (n) is very large B)if the sample standard deviation (σ) is very large C)if the standard error of M (σ_M) is very large D)All of the other factors are likely to produce a significant result.

Question

Quizplus · Accepted Answer

A very small treatment effect can still be significant if the sample size is very large because a larger sample size increases the power of a statistical test, making it easier to detect small effects.

Under What Circumstances Can a Very Small Treatment Effect Can