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QUESTION 3 The validity coefficient of an aggression scale is .5. Using a score on this scale as a predictor of domestic violence, how much of the variability in domestic violence can be attributed to scores on the aggression scale? O a. 50% O b. indeterminate O c. 25% O d. none QUESTION 4 Why is evidence for criterion-related validity gathered? O a. Tests serve as a substitute for the real measure of interest. O b. It is critical for reliability. O c. Criterion validity subsumes all other validity. O d. It is legally required. QUESTION 5 A multiple-choice test with five options has a chance performance level of O a. .25. O b. .20. O c. .10. O d. .50