This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: One can optimize and strengthen the power of a t test in all of the following ways, EXCEPT a. by ... (Read 31 times)

ec501234

  • Hero Member
  • *****
  • Posts: 573
on: Jun 20, 2018
One can optimize and strengthen the power of a t test in all of the following ways, EXCEPT
 
  a. by using stronger treatments to drive the means of the two groups farther apart.
  b. by decreasing the effect size of the study.
  c. by decreasing the variability within groups.
  d. by increasing the total size of the study.

Question 2

Rather than personally reading the research instructions to each subject, an investigator has the subjects listen to a tape recording of the research instructions. In this case, the researcher is trying to optimize t by
 
  a. driving the means further apart.
  b. decreasing the variability of response within groups.
  c. using a paired t test rather than an independent t test.
  d. increasing the total size of the study.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

AISCAMPING

  • Sr. Member
  • ****
  • Posts: 347
Reply #1 on: Jun 20, 2018
Answer to Question 1

b

Answer to Question 2

b


ec501234

  • Member
  • Posts: 573
Reply 2 on: Jun 20, 2018
Wow, this really help

DylanD1323

  • Member
  • Posts: 314
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.

Did you know?

Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.

Did you know?

To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

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?

There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

While most people resist labels of deviance, some embrace them. In what different ways do these ... While most people resist labels of deviance, some embrace them. In what different ways do these ...
Using an ice bath to test the fuel temperature sensor. Using an ice bath to test the fuel temperature sensor.
Rinne test. Air conduction Rinne test. Air conduction
Outgroup role in relative rate test Outgroup role in relative rate test
Three ways by which chromatin remodelers Three ways by which chromatin remodelers
Emerson’s Three-Point Test-Cross Analysis Emerson’s Three-Point Test-Cross Analysis
Video: Activation Energy - Valence Electrons

For a complete list of videos, visit our video library