Author Question: The null hypothesis in a repeated measures t test is a. the hypothesis that the mean difference ... (Read 77 times)

mrsjacobs44

  • Hero Member
  • *****
  • Posts: 500
The null hypothesis in a repeated measures t test is
 
  a. the hypothesis that the mean difference score is equal to 0.
  b. the hypothesis that the mean difference score is different from 0 in either direction.
  c. the hypothesis that post scores are larger than pre-scores.
  d. the hypothesis that the variance of scores stays constant from pretest to posttest.

Question 2

A repeated measures t test is more likely to lead to rejection of the null hypothesis if
 
  a. subjects show considerable variability in their change scores.
  b. many subjects show no change.
  c. some subjects change a lot more than others.
  d. the degree of change is consistent across subjects.



djpooyouma

  • Sr. Member
  • ****
  • Posts: 325
Answer to Question 1

A

Answer to Question 2

D



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

Did you know?

A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

Did you know?

Always store hazardous household chemicals in their original containers out of reach of children. These include bleach, paint, strippers and products containing turpentine, garden chemicals, oven cleaners, fondue fuels, nail polish, and nail polish remover.

For a complete list of videos, visit our video library