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

Author Question: If an extraneous variable affects all groups equally: a. within-groups variance is increased. b. ... (Read 106 times)

dmcintosh

  • Hero Member
  • *****
  • Posts: 517
If an extraneous variable affects all groups equally:
 
  a. within-groups variance is increased.
  b. it is more difficult to reject the null hypothesis.
  c. there is increased probability of a Type II error.
  d. all of these

Question 2

If individuals in different groups are not treated identically except for the independent variable, then:
 
  a. within-groups variance is increased.
  b. the F ratio is decreased.
  c. a possible confound is introduced.
  d. between-groups variance is decreased.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

TheNamesImani

  • Sr. Member
  • ****
  • Posts: 334
Answer to Question 1

D

Answer to Question 2

C





 

Did you know?

Although not all of the following muscle groups are commonly used, intramuscular injections may be given into the abdominals, biceps, calves, deltoids, gluteals, laterals, pectorals, quadriceps, trapezoids, and triceps.

Did you know?

People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.

Did you know?

Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.

Did you know?

Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.

Did you know?

Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.

For a complete list of videos, visit our video library