Does anyone knows about the relationship between the effect size and the significance? I was given following question and no clue how to answer it:
You hear that a study (randomized, controlled trial with two groups) found a small sized effect of a drug (n = 72) against placebo (n = 72) of d = 0.2. Is this effect significant with α=0.05? (You can solve this problem just by looking at the formulae. You should not need the help of a computer.)
You hear that a study (randomized, controlled trial with two groups) found a small sized effect of a drug (n = 72) against placebo (n = 72) of d = 0.2. Is this effect significant with α=0.05? (You can solve this problem just by looking at the formulae. You should not need the help of a computer.)