Wendy has determined that the correlation between her reading screening test and her students' reading grades is .30.This means that _____ percent of the variation in reading scores is accounted for by knowing the students' scores on the screening test.
A) 9
B) 30
C) 60
D) 90
Correct Answer:
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Q145: A measure that tells us the percentage
Q146: Correlations allow us to
A)establish causation.
B)determine statistical significance.
C)establish
Q147: Correlations allow us to _, while experiments
Q148: Which of the following correlation coefficents indicates
Q149: A correlation of +1.00 or -1.00 means
Q151: Regarding correlations, which of the following statements
Q152: Correlations are important for
A)calculating z-scores.
B)making predictions.
C)proving causality.
D)forming
Q153: Correlations tell us only the degree of
Q154: If you square the correlational coefficient, you
Q155: Which of the following correlation coefficents indicates
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