Author Question: Extraneous variables that affect groups equally: a. are called confounds. b. introduce ... (Read 78 times)

SAVANNAHHOOPER23

  • Hero Member
  • *****
  • Posts: 542
Extraneous variables that affect groups equally:
 
  a. are called confounds.
  b. introduce systematic bias.
  c. do not affect rejection of the null hypothesis.
  d. add overall variability.

Question 2

Confounds introduce:
 
  a. nonsystematic bias.
  b. systematic bias.
  c. both systematic and nonsystematic bias.
  d. error variance.



emilymalinowski12

  • Sr. Member
  • ****
  • Posts: 338
Answer to Question 1

D

Answer to Question 2

B



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Medication errors are three times higher among children and infants than with adults.

Did you know?

Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Did you know?

Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.

Did you know?

To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.

For a complete list of videos, visit our video library