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 use extreme levels of the independent variable, you may improve power at the expense of external validity.
-- Choose an answer --
a. True
b. False
2. Using an empty control group may help your study's power.
-- Choose an answer --
a. True
b. False
3. If you are interested in construct validity, you should use
-- Choose an answer --
a. An empty control group
b. Double blind procedures
4. In examining the effect of a treatment designed to help patients, it is probably more ethical to use
-- Choose an answer --
a. An empty control group
b. A placebo treatment, rather than a no-treatment, comparison group
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