Author Question: When the change in the dependent variable could be due to extreme scores moving to the mean on ... (Read 46 times)

naturalchemist

  • Hero Member
  • *****
  • Posts: 542
When the change in the dependent variable could be due to extreme scores moving to the mean on subsequent testing, __________ is a threat to internal validity.
 
  a. history
  b. maturation
  c. regression to the mean
  d. selection

Question 2

When a change in the dependent variable could be due to internal changes within the participant that occurred over time, __________ is a threat to internal validity.
 
  a. history
  b. maturation
  c. regression to the mean
  d. selection



efwsefaw

  • Sr. Member
  • ****
  • Posts: 351
Answer to Question 1

C

Answer to Question 2

B



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

Did you know?

A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.

Did you know?

This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.

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?

Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.

For a complete list of videos, visit our video library