Question 5
0 out of 5 points
The minimum acceptable level of estimated power for a study is:
Selected Answer:
0.45.
Answers:
0.95.
0.80.
0.45.
0.10.

Question 6
0 out of 5 points
Confidence in a point estimate _____, whereas confidence in an interval estimate _____.

Question 7
5 out of 5 points
To remove the adjustment for the influence of sample size, Cohen's d uses the _____
rather than the _____ as part of its formula.

standard deviation; standard error
raw scores; standard scores
variance; raw scores
Question 8
0 out of 5 points
Recent research published by Frumin and colleagues (2011) in the journal Science
addresses whether females' tears have an effect on males. Imagine that exposure to
tears lowered self-rated sexual arousal by 1.27 points, with a margin of error of 0.32
points. The point estimate is _____, while the interval estimate is _____.
Question 9

0 out of 5 points
Cohen's d is the:
Selected Answer:
difference between the sample means divided by the standard error.
Answers:
method for calculating confidence intervals for the z test.
difference between the sample means divided by the standard error.
standardized difference between group means.
measure of statistical power.
Question 10

0 out of 5 points
In a hypothetical study, researchers found that the average donut sold by Krispy
Kreme contains 260 calories with a standard deviation of 35 calories. At stores
where calorie information was located next to the menu items, the average donut
sold contained only 240 calories. Based on this information the effect size would be
described as _____.
Question 11

5 out of 5 points
Recent research published by Frumin and colleagues (2011) in the journal Science
addresses whether females' tears have an effect on males. Imagine that exposure to
tears lowered self-rated sexual arousal by 1.27 points, with a margin of error of 0.32
points. The interval estimate is:

Answers: