# collier

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1. validity-the concptual definition
• the validity of a measurement is the correlation between this measurement and the true measurement of the construct.
• this is impossible because we can never have a "true" measurement of a abstact construct that is why we call it abstract
2. construct validation
• since we cant have a direct measurement of an abstract construct, we take an indirect approach. we take an "end-run" around the problem by measuring a construct in multiple ways
• each measurement provides a different perspective on the construct
• correlate variable that we can measure
3. content validity
looks at the applicability and breadth of the measurements of the construct
4. criterion-related validity
• two types: concurrent criterion validity
• predictive criterion validity
5. Concurrent criterion validity
the criterion is measured at the same time as the test
6. Predictive criterion validity
• the criterion is measured later, after the test
• ex. pregnancy test, fighter jet pilot test, firefighter test
7. convergent validity
• multiple tests of the same thing
• usually involves correlating a new test of a construct(ex. intelligence) with a well established test of the same construct
8. discriminant validity
• measurements should not correlate with different and irrelevant constructs
• in other words, your measurement should discriminate between what you want to measure and things you dont want to measure
9. experimental manipulation
• use our measurement as a dependent variable in an experiment
• create an independent variable that should have an effec on our measurement (DV)
• ex. we created a measurement for mood. we then manipulate mood in an obvious way and see whether it influences our measurement
• we do an experiment to test whether an independent variable that is known to have a effect on an dependent variable that we are not sure about
10. formula to find correlation
• n(n-1)
•      2

### Card Set Information

 Author: brittanyball42 ID: 175452 Filename: collier Updated: 2012-10-04 05:13:58 Tags: chp Folders: Description: chp 3.5 Show Answers:

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