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. Relative to an unreliable measure, a reliable measure is less likely to be affected by
2. Valid measures are reliable.
3. A reliable measure would have a test-retest coefficient above +1.00.
4. If a measure has a test-retest correlation coefficient of +.80, no more than 20% of the variability in the scores is due to random error.
5. Interobserver reliability puts a ceiling on test-retest reliability.
6. If you have a multiple-choice measure, you should calculate its inter-observer reliability.
7. Internal consistency is an index of inter-observer reliability.
8. Adding questions to a measure will increase its internal consistency.
9. A median inter-item correlation of .35 indicates a higher degree of internal consistency than a Cronbach´s alpha of .50.
10. Split-half reliability is a good index of a measure´s overall reliability.
11. Inter-item correlations are a good way to assess the extent to which random observer error affects your multiple-choice measure.
12. Reliability guarantees validity.

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