This topic contains a solution. Click here to go to the answer

Author Question: The mean of a column of difference scores is equal to a. the ratio of the means of the individual ... (Read 73 times)

big1devin

  • Hero Member
  • *****
  • Posts: 583
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



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

HandsomeMarc

  • Sr. Member
  • ****
  • Posts: 360
Answer to Question 1

B

Answer to Question 2

D





 

Did you know?

Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.

Did you know?

There are 20 feet of blood vessels in each square inch of human skin.

Did you know?

Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.

Did you know?

The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.

Did you know?

Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.

For a complete list of videos, visit our video library