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Concurrent Validity Pages 158 - 164 By: Davida R. Molina October 23, 2006.
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Transcript of Concurrent Validity Pages 158 - 164 By: Davida R. Molina October 23, 2006.
![Page 1: Concurrent Validity Pages 158 - 164 By: Davida R. Molina October 23, 2006.](https://reader036.fdocuments.in/reader036/viewer/2022083008/56649f3a5503460f94c5765e/html5/thumbnails/1.jpg)
Concurrent ValidityPages 158 - 164
By: Davida R. Molina
October 23, 2006
![Page 2: Concurrent Validity Pages 158 - 164 By: Davida R. Molina October 23, 2006.](https://reader036.fdocuments.in/reader036/viewer/2022083008/56649f3a5503460f94c5765e/html5/thumbnails/2.jpg)
Validity
• In order to understand concurrent validity, we must understand validity– most important idea to
consider when preparing or selecting an instrument
– refers to the degree to which evidence supports any inferences a researcher makes
Validity
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3 Main Types of Evidence Collected for Validity
Validity
Content Related Criterion Related Construct Related
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Criterion Related Evidence of Validity
• Researchers compare performance on 1 instrument with performance on another
• 2 Forms:– Predictive Validity
– Concurrent Validity
Validity
Content Related
Construct Related
Criterion Related
Predictive Validity
Concurrent Validity
![Page 5: Concurrent Validity Pages 158 - 164 By: Davida R. Molina October 23, 2006.](https://reader036.fdocuments.in/reader036/viewer/2022083008/56649f3a5503460f94c5765e/html5/thumbnails/5.jpg)
Concurrent Validity
• Instrument data and criterion data are gathered at nearly the same time and results are compared
Validity
Content Related
Construct Related
Criterion Related
Predictive Validity
Concurrent Validity
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Concurrent Validity
• Example:
Researcher administers a self-esteem inventory to a group of 8th graders and compares their scores on it with their teacher’s ratings of students’ self-esteem obtained at about the same time.
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Concurrent Validity• A Key Index used is correlation coefficient:
– symbolized by “r”– indicates degree of relationship that exists
between the scores individuals obtain on 2 instruments
– + relationship = both scores are high or both scores are low
– - relationship = one score is high and the other is low
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Concurrent Validity
• Another way to depict criterion related evidence is by using an expectancy table:– 2 way chart– predictor categories are listed vertically on the
left– criterion categories are along the top– simple to construct– easy to understand
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Concurrent Validity
It is important to realize that the nature of the criterion is the most important factor in
gathering criterion-related evidence.