1) Suppose a friend of yours is thinking of using a diet pill. The pill manufacturer says that participants taking the pill lost significantly more weight than those merely dieting, z=4.12, p<.01, Cohen's d=.03. Why should you recommend against taking this pill?

a. The groups only differed by .03

b. The groups only differed by <.01

c. The probability that it'll work is only .03

d. The probability that it'll work is only <.01

2) If you have a larger effect size, the value of the standard error of the mean will:

a. Increase

b. Decrease

c. Stay the same

d. Cannot be determined without more information

3) If you have a larger effect size, the probability of a Type II error will:

a. Increase

b. Decrease

c. Stay the same

d. Cannot be determined without more information

4) According to Central Limit Theorem, sampling distributions will be normally distributed if:

a. You are sampling from a normal population OR your sample size is large (n 30)

b. You are sampling from a normal population AND your sample size is large (n 30)

c. ONLY if you are sampling from a normal population

d. ONLY if your sample size is large (n 30)

5) (X - ) = ________

a. 0

b. SS

c. Cannot be determined without more information

d. Variance

6)If you decrease (e.g., from .05 to .01), the probability of a Type II error will:

a. Increase

b. Decrease

c. Stay the same

d. Cannot be determined without more information