Author Question: In a preexperimental design specific events may occur between the pretest and the posttest, which ... (Read 173 times)

LaDunn

  • Hero Member
  • *****
  • Posts: 526
In a preexperimental design specific events may occur between the pretest and the posttest, which cause changes that are measured on the posttest. This represents a failure to control
 
  a. randomization.
  b. maturation.
  c. pretest sensitivity.
  d. reactivity.
  e. history.

Question 2

Choose the type of validity evidence that a researcher would need to determine the score validity of the following kinds of instruments. A test designed to measure what fourth graders know about long division.
 
  a. evidence based on content.
  b. evidence based on relationship to other variables
  c. evidence based on construct measured



kardosa007

  • Sr. Member
  • ****
  • Posts: 300
Answer to Question 1

E

Answer to Question 2

A



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question


 

Did you know?

Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.

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?

The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.

Did you know?

When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

Did you know?

Though methadone is often used to treat dependency on other opioids, the drug itself can be abused. Crushing or snorting methadone can achieve the opiate "rush" desired by addicts. Improper use such as these can lead to a dangerous dependency on methadone. This drug now accounts for nearly one-third of opioid-related deaths.

For a complete list of videos, visit our video library