Author Question: Randomizing treatments to test units is not an effective method of handling extraneous variables, ... (Read 15 times)

michelleunicorn

  • Hero Member
  • *****
  • Posts: 565
Randomizing treatments to test units is not an effective method of handling extraneous variables, because it does not in any way control extraneous variables.
 
 Indicate whether the statement is true or false

Question 2

Writing the names of the students in a class on separate sheets of paper, shuffling them thoroughly, and then drawing five names out of a hat, is a type of ______ sample.
 Fill in the blank(s) with correct word



parker125

  • Sr. Member
  • ****
  • Posts: 332
Answer to Question 1

F
Randomization is important for controlling extraneous variables in experimental design.

Answer to Question 2

simple random



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Every flu season is different, and even healthy people can get extremely sick from the flu, as well as spread it to others. The flu season can begin as early as October and last as late as May. Every person over six months of age should get an annual flu vaccine. The vaccine cannot cause you to get influenza, but in some seasons, may not be completely able to prevent you from acquiring influenza due to changes in causative viruses. The viruses in the flu shot are killed—there is no way they can give you the flu. Minor side effects include soreness, redness, or swelling where the shot was given. It is possible to develop a slight fever, and body aches, but these are simply signs that the body is responding to the vaccine and making itself ready to fight off the influenza virus should you come in contact with it.

Did you know?

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

Did you know?

The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

Did you know?

Vaccines prevent between 2.5 and 4 million deaths every year.

Did you know?

Approximately 500,000 babies are born each year in the United States to teenage mothers.

For a complete list of videos, visit our video library