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

Author Question: Dr. Dunn is conducting some research involving a new math learning program. To test the ... (Read 42 times)

bucstennis@aim.com

  • Hero Member
  • *****
  • Posts: 532
Dr. Dunn is conducting some research involving a new math learning program. To test the effectiveness of the new math program, he selects two sections of his high school math classes to participant in his study.
 
  His 1st period 9th grade math class will be the experimental group and his 4th period 11th grade math class will be the control group. Which of the following confounding variable threats is possible in this example?
 
   
 a. selection-maturation
   b. selection-instrumentation
   c. selection-testing
   d. selection-regression

Question 2

When evaluating the validity of information on the internet, which of the following is important information to find on the authority of an author?
 
  a. number of testimonials
  b. email address
  c. credentials
  d. opinions



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

succesfull

  • Sr. Member
  • ****
  • Posts: 339
Answer to Question 1

A

Answer to Question 2

C




bucstennis@aim.com

  • Member
  • Posts: 532
Reply 2 on: Jul 13, 2018
Gracias!


zacnyjessica

  • Member
  • Posts: 345
Reply 3 on: Yesterday
:D TYSM

 

Did you know?

Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.

Did you know?

You should not take more than 1,000 mg of vitamin E per day. Doses above this amount increase the risk of bleeding problems that can lead to a stroke.

Did you know?

Certain topical medications such as clotrimazole and betamethasone are not approved for use in children younger than 12 years of age. They must be used very cautiously, as directed by a doctor, to treat any child. Children have a much greater response to topical steroid medications.

Did you know?

Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.

Did you know?

Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).

For a complete list of videos, visit our video library