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

Author Question: The number of levels or conditions of an independent variable are limited to two per study. ... (Read 40 times)

mmm

  • Hero Member
  • *****
  • Posts: 558
The number of levels or conditions of an independent variable are limited to two per study.
 
  Indicate whether the statement is true or false

Question 2

Have you ever played a video game breaking the all-time high score only to find that you were never able to duplicate that performance? This is an example of _________, which is a threat to internal validity.
 
  a. history
  b. maturation
  c. regression to the mean
  d. selection



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

manuelcastillo

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

F

Answer to Question 2

C




mmm

  • Member
  • Posts: 558
Reply 2 on: Jul 13, 2018
Excellent


xiaomengxian

  • Member
  • Posts: 311
Reply 3 on: Yesterday
Great answer, keep it coming :)

 

Did you know?

The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

Did you know?

Human kidneys will clean about 1 million gallons of blood in an average lifetime.

Did you know?

Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.

Did you know?

In the United States, congenital cytomegalovirus causes one child to become disabled almost every hour. CMV is the leading preventable viral cause of development disability in newborns. These disabilities include hearing or vision loss, and cerebral palsy.

Did you know?

Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

For a complete list of videos, visit our video library