Unformatted text preview: For Example - does a stress inventory/test actually measure the amount of stress in a person's life and not something else. Reliability- is the test consistent? If we get same results over and over, then reliable. For Example - an IQ test - probably won't change if you take it several times. Thus, if it produces the same (or very, very similar) results each time it is taken, then it is reliable. However, a test can be reliable without being valid, so we must be careful. For Example - the heavier your head, the smarter you are. If I weighed your head at the same time each day, once a day, for a week, it would be virtually the same weight each day. This means that the test is reliable. But, do you think this test is valid (that is indeed measures your level of "smartness")? Probably NOT, and therefore, it is not valid....
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- Fall '09
- Psychology, Bayer vs Tylenol, aspirin vs Tylenol