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Author Question: The mean of a column of difference scores is equal to a. the ratio of the means of the individual ... (Read 74 times)

big1devin

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on: Jun 20, 2018
The mean of a column of difference scores is equal to
 
  a. the ratio of the means of the individual columns.
  b. the difference between the means of the individual columns.
  c. the sample size.
  d. We can't tell without calculating it for a set of data.

Question 2

A difference score is obtained by
 
  a. subtracting the Before score from the After score.
  b. subtracting the After score from the Before score.
  c. dividing After scores by Before scores.
  d. either a or b, just so long as you are consistent


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HandsomeMarc

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Reply #1 on: Jun 20, 2018
Answer to Question 1

B

Answer to Question 2

D


big1devin

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Reply #2 on: Jun 20, 2018
Thank you!


HandsomeMarc

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Reply #3 on: Jun 20, 2018
Happy to help


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