Author Question: As part of a meta-analysis, a researcher needs to calculate Cohen's d for a two-group study. Which ... (Read 72 times)

anjilletteb

  • Hero Member
  • *****
  • Posts: 569
As part of a meta-analysis, a researcher needs to calculate Cohen's d for a two-group study. Which of the following represents all the information required to do this calculation?
 
  a) The difference in group means and the pooled standard deviation.
   b) The two group means and standard deviations.
   c) The difference in group means and the sample sizes.
   d) The two group means and the two variances.

Question 2

One distinction between test validity and test utility is that test validity refers to the
 
  a) appropriate use of information from testing, while test utility refers to improved results due to the testing.
   b) ability of the test to provide unbiased results, while test utility refers to the ability of the test to provide consistent results.
   c) usefulness of information provided by the test, while test utility refers to the fact that such information is unbiased.
   d) consistency of information provided by the test, while test utility refers to how that information is put to use.



firehawk60

  • Sr. Member
  • ****
  • Posts: 315
Answer to Question 1

a

Answer to Question 2

a



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Blood is approximately twice as thick as water because of the cells and other components found in it.

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?

The average adult has about 21 square feet of skin.

Did you know?

By definition, when a medication is administered intravenously, its bioavailability is 100%.

Did you know?

Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.

For a complete list of videos, visit our video library