« previous next »

Author Question: When the change in the dependent variable could be due to extreme scores moving to the mean on ... (Read 86 times)

naturalchemist

  • Hero Member
  • *****
  • Posts: 542
on: Jul 13, 2018
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
Reply #1 on: Jul 13, 2018
Answer to Question 1

C

Answer to Question 2

B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

About 60% of newborn infants in the United States are jaundiced; that is, they look yellow. Kernicterus is a form of brain damage caused by excessive jaundice. When babies begin to be affected by excessive jaundice and begin to have brain damage, they become excessively lethargic.

Did you know?

The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.

Did you know?

Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

Did you know?

Famous people who died from poisoning or drug overdose include, Adolf Hitler, Socrates, Juan Ponce de Leon, Marilyn Monroe, Judy Garland, and John Belushi.

Did you know?

Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.

Evolutionary change in the tetrapod lineage, showing a transitional form. Evolutionary change in the tetrapod lineage, showing a transitional form.
Young adults with low levels of parental support report significantly better scores on measures of ... Young adults with low levels of parental support report significantly better scores on measures of ...
Negative feedback control of a regulated variable. Negative feedback control of a regulated variable.
Direct thumb pressure along the tibialis anterior. Start at proximal end, moving about 1 inch at a ... Direct thumb pressure along the tibialis anterior. Start at proximal end, moving about 1 inch at a ...
Proposed mechanism for the reaction catalyzed by flavin-dependent thymidylate synthase Proposed mechanism for the reaction catalyzed by flavin-dependent thymidylate synthase
Generation of diversity by variable V-J joining mechanisms Generation of diversity by variable V-J joining mechanisms
Video: Major Elements in Biological Molecules: Nucleic acids

For a complete list of videos, visit our video library