Author Question: When the change in the dependent variable could be due to extreme scores moving to the mean on ... (Read 75 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?

Opium has influenced much of the world's most popular literature. The following authors were all opium users, of varying degrees: Lewis Carroll, Charles, Dickens, Arthur Conan Doyle, and Oscar Wilde.

Did you know?

About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.

Did you know?

Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.

Did you know?

Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.

Did you know?

Asthma cases in Americans are about 75% higher today than they were in 1980.

For a complete list of videos, visit our video library