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. Which is closest to the definition of reliability?
-- Choose an answer --
a. Accuracy
b. Consistency
2. Reliability is a prerequisite for validity.
-- Choose an answer --
a. True
b. False
3. To determine the reliability of a measure, you would test participants on that measure, then
-- Choose an answer --
a. Retest participants on the same measure and correlate participants´ scores from the two times of measurement.
b. Test participants on a measure of a related concept and correlate participants´ scores from the two measurements.
4. A reliable measure would have a test-retest coefficient above +0.70.
-- Choose an answer --
a. True
b. False
5. If a measure has a test-retest correlation coefficient of +.90, no more than 10% of the variability in the scores is due to random error.
-- Choose an answer --
a. True
b. False
6. If interobserver reliability is .60, test-retest reliability cannot be above .60.
-- Choose an answer --
a. True
b. False
7. If test-retest reliability is .90, you should calculate your measure´s interobserver reliability.
-- Choose an answer --
a. True
b. False
8. Low internal consistency may be due to random error due to participants.
-- Choose an answer --
a. True
b. False
9. Editing and deleting unclear questions from a measure will tend to increase its internal consistency.
-- Choose an answer --
a. True
b. False
10. An odd-even correlation of .60 indicates that the measure is internally consistent.
-- Choose an answer --
a. True
b. False
11. Split-half reliability is a good index of the extent to which random observer error affects your measure.
-- Choose an answer --
a. True
b. False
12. All reliability coefficients are essentially the same.
-- Choose an answer --
a. True
b. False
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