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QUESTION 21 4 points Save Answer If people who score low on one measure also score low on another measure, there is a cause-and-effect relation between the two measures a floor effect a negative relation between the two measures no relation between the two measures a positive relation between the two measures QUESTION 22 4 points Save Answer In an independent measures experiment with three treatment conditions, the means of the three groups are: M1 = 10.00, M2 = 10.00, and M3 = 10.00. For these data, the value of the Incorrect 0.00 0.667 1.00 10.00 30.00 cannot be determined without knowing variance estimates