Ch 11 Notes Testing and Individual Differences

Ch 11 Notes Testing and Individual Differences - Chapter 11...

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Chapter 11: Testing and Individual Differences AP Psychology Mr. Tusow
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Measuring Individual Differences Psychology relies heavily on testing individuals, it is part of the foundation for psychological analysis. To be effective, however, strict guidelines must be followed. Validity: Does the test actually measure what we say it does/what we want it to? Ex. Reading on a math test Face validity: Does the test look like it tests what it is supposed to test? Content validity: Each part of the test is representative of the larger body of knowledge.
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Measuring Individual Differences Criterion Validity: The behavior (such as college grades) that a test (such as the SAT) is designed to predict Predictive Validity: The success with which a test predicts the behavior it is designed to predict.
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Assessing Intelligence As the range of data under consideration narrows, its predictive power diminishes Greater correlation over broad range of body weights 10 9 8 7 6 5 4 3 2 1 0 Little corre- lation within restricted range Football linemen’s success Body weight in pounds 180 250 290
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Measuring Individual Differences The second part of a credible test is reliability. Reliability: A test yields the same results over time Test-Retest or Split-Half Reliability Reliable, but not valid Not reliable, not valid Reliable and valid
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Creating Validity and Reliability The most efficient way to create validity and
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This note was uploaded on 12/07/2011 for the course PSYCH 111 taught by Professor Larson during the Fall '11 term at BYU.

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Ch 11 Notes Testing and Individual Differences - Chapter 11...

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