Author Question: How is the proportion of variance accounted for calculated? a. It is the same as the ... (Read 78 times)

cmoore54

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How is the proportion of variance accounted for calculated?
 
  a. It is the same as the point-biserial correlation coefficient.
  b. It is the square root of the point-biserial correlation coefficient.
  c. It is the squared point-biserial correlation coefficient.
  d. It is the slope and intercept of the regression line.

Question 2

In an experiment, the proportion of variance accounted for is also called the
 
  a. effect size.
  b. error reduction coefficient.
  c. confidence interval.
  d. standard error of the difference between means.



ktidd

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Answer to Question 1

c

Answer to Question 2

a



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