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RM Chapter 6
When the correlation coefficient is again used to asses the reliability of the set of scores
Correlates with outcomes happening at the same time. Subcategory of Criterion Validity
Correlates with other similar measures. Subcategory of Construct Validity
Correlates with appropriate outcomes
Testing for distinctiveness between measures or manipulations of related but conceptually different traits or behaviors.
Conclusions made about the extent to which a casual relationship holds across variations in persons, settings, treatments and outcomes
"Makes sense" or Common sense test.
Checks for interrelated items, similar responses, and making sure they tap from the same construct
Whether the observed covariation between variables truly reflects a relationship between the variables.
Plausible Rival Hypothesis
A competing explanation for results
Measured at two different times to predict the future. Subcategory of Criterion Validity
Inaccuracies occurring by chance
Measures are consistent or stable
Fluctuations that are slanted in a particular direction; bias
For stable characteristics and a good test, a person should get the same scores on different occasions.
Truth or accuracy, how well a measure assesses what is purports to measure
You can have reliability without validity but not validity without reliability
Adequate coverage of areas. Generating more ideas than needed, omitting those that are not accurate. Representing the ideas they are supposed to represent
Meaning fits goal. Operational definition is accurate.
Used to measure the reliability of a psychometric test score for a sample of examinees.