Correct test retest 27 interrater internal construct FEEDBACK Using the

Correct test retest 27 interrater internal construct

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Correct! test-retest 27
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interrater internal construct FEEDBACK: Using the Correlation Coefficient r to Evaluate Reliability — Dr. Johnson has measured the same set of participants on the same measure twice and found a strong positive correlation. This is a sign of strong test-retest reliability. 13.) Mendoza et al. (2009) introduced a coin rotation task as a convenient test of motor dexterity. It involves timed completion of twenty 180° rotations of a nickel using the thumb, index, and middle fingers. Research participants' results on the coin rotation task are compared with their results on two widely used tests of motor dexterity: the finger-tapping task and the Grooved Pegboard task. What empirical way of assessing construct validity is being used? face validity concurrent validity discriminant validity Correct! convergent validity FEEDBACK: Convergent Validity and Discriminant Validity: Does the Pattern Make Sense? — If a measure correlates strongly with other measures of the same construct, it shows convergent validity. This is considered evidence for the validity of the measure. 14.) Mendoza et al. (2009) introduced a coin rotation task as a convenient test of motor dexterity. It involves timed completion of twenty 180° rotations of a nickel using the thumb, index, and middle fingers. Research participants' results on the coin rotation task are compared with their results on a test of grip strength — a measure of another construct: global upper- extremity strength. The correlation between the coin rotation task and the grip strength task were found to be not statistically significant. This comparison provides support for which type of measurement validity? 28
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face validity predictive validity Correct! discriminant validity convergent validity FEEDBACK: Convergent Validity and Discriminant Validity: Does the Pattern Make Sense? — The coin rotation task should correlate strongly with other tests of motor dexterity, but should not correlate strongly with measures of other traits. Grip strength is related to motor functioning, but does not capture dexterity, so this is discriminant evidence for validity. 15.) Which of the following is true of the difference between predictive validity and concurrent validity? Correct! Predictive validity is supported when a measure predicts a future outcome rather than a current outcome. Concurrent validity is tested using a correlation coefficient rather than a scatterplot. All of the above are differences between predictive validity and concurrent validity. Concurrent validity is tested after predictive validity is established. 29
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