Test Yourself
Take this quiz and see how you do. Select the correct answers by using the drop down menus. Once you are done, click submit to see your score! The ones that you get wrong will have a check!
1. If you have mistakenly declared what was a chance difference to be a real difference, you have made a
-- Choose an answer --
a. Type 1 error
b. Type 2 error
2. Which would be most like a Type 1 error?
-- Choose an answer --
a. A physician telling a women who was not pregnant that she was pregnant
b. A physician telling a women who was pregnant that she was not pregnant
3. By cleverly designing your experiment, you can greatly reduce the chances of making a Type 1 error.
-- Choose an answer --
a. True
b. False
4. You can determine how much of a risk you will take it making a Type 1 error.
-- Choose an answer --
a. True
b. False
5. If you fail to obtain statistically significant results, you have made a Type 1 error.
-- Choose an answer --
a. True
b. False
6. You can reduce your risk of making Type 1 errors by using a p < .0001 significance level rather than a p < .05 level.
-- Choose an answer --
a. True
b. False
7. What would be most like a Type 2 error?
-- Choose an answer --
a. A jury convicting an innocent person
b. A jury letting a guilty person go free because the evidence was not conclusive
8. If you reduce your risk of making a Type 1 error, you will also reduce your risk of making a Type 2 error
-- Choose an answer --
a. True
b. False
9. In most research, Type 1 errors are more likely to occur than Type 2 errors.
-- Choose an answer --
a. True
b. False
10. Which experiment would be more powerful?
-- Choose an answer --
a. An experiment using 20 participants
b. An experiment using 100 participants
11. Which experiment would probably be more powerful?
-- Choose an answer --
a. An experiment studying only college men between the ages of 18 and 19
b. An experiment studying a broad, representative sample of the U.S. population
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