Under what circumstances can a very small treatment effect 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.

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Quizplus · Accepted Answer

A very small treatment effect can still be significant if the sample size (n) is very large. This is because a larger sample size increases statistical power and reduces the standard error, making it easier to detect even small effects as statistically significant.

Under What Circumstances Can a Very Small Treatment Effect Still