Author Question: An experiment is externally valid if: a. the outcome can be attributed to the independent ... (Read 41 times)

arivle123

  • Hero Member
  • *****
  • Posts: 569
An experiment is externally valid if:
 
  a. the outcome can be attributed to the independent variable only.
  b. the results generalize to other settings.
  c. the results are attributed only to external variables.
  d. there are no alternative explanations of the findings.

Question 2

An experiment is internally valid if:
 
  a. the outcome can be attributed to the independent variable only.
  b. the results generalize to other settings.
  c. the results may be attributed to either the independent variable or a confounding variable.
  d. the internal variables are operationally defined.



harveenkau8139

  • Sr. Member
  • ****
  • Posts: 304
Answer to Question 1

B

Answer to Question 2

A



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

Did you know?

The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.

Did you know?

According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.

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?

People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.

For a complete list of videos, visit our video library