This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: If an extraneous variable affects all groups equally: a. within-groups variance is increased. b. ... (Read 54 times)

dmcintosh

  • Hero Member
  • *****
  • Posts: 517
on: Jun 20, 2018
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
Reply #1 on: Jun 20, 2018
Answer to Question 1

D

Answer to Question 2

C


dmcintosh

  • Hero Member
  • *****
  • Posts: 517
Reply #2 on: Jun 20, 2018
Thank you


TheNamesImani

  • Sr. Member
  • ****
  • Posts: 334
Reply #3 on: Jun 20, 2018
No problem :)


« previous next »
 

Did you know?

Medications that are definitely not safe to take when breastfeeding include radioactive drugs, antimetabolites, some cancer (chemotherapy) agents, bromocriptine, ergotamine, methotrexate, and cyclosporine.

Did you know?

Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.

Did you know?

Adults are resistant to the bacterium that causes Botulism. These bacteria thrive in honey – therefore, honey should never be given to infants since their immune systems are not yet resistant.

Did you know?

Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.

Did you know?

A serious new warning has been established for pregnant women against taking ACE inhibitors during pregnancy. In the study, the risk of major birth defects in children whose mothers took ACE inhibitors during the first trimester was nearly three times higher than in children whose mothers didn't take ACE inhibitors. Physicians can prescribe alternative medications for pregnant women who have symptoms of high blood pressure.

A plot of trophic diversity across the major groups of organisms shows highest trophic diversity amo A plot of trophic diversity across the major groups of organisms shows highest trophic diversity amo
Functional groups Functional groups
How alcohol affects you body How alcohol affects you body
Funeral Rituals and Practices among U.S. Cultural Groups Funeral Rituals and Practices among U.S. Cultural Groups
Two areas of reduced cortical volume and one area of increased cortical volume observed in people ... Two areas of reduced cortical volume and one area of increased cortical volume observed in people ...
Estimates of the dates of origin and extinction of the three main groups of hominins (green, blue, a Estimates of the dates of origin and extinction of the three main groups of hominins (green, blue, a
Video: Role of transport in a cell

For a complete list of videos, visit our video library