Author Question: A test has a standard deviation of 4 and a reliability of .91 . What is the standard error of ... (Read 47 times)

rmenurse

  • Hero Member
  • *****
  • Posts: 513
A test has a standard deviation of 4 and a reliability of .91 . What is the standard error of measurement?
 
  a. 1.20 c. 3.64
  b. 1.82 d. 3.82

Question 2

Cronbach's coefficient alpha is preferred to the Kuder-Richardson 21 when
 
  a. the items are all of the same level of difficulty.
  b. the items are scored right or wrong (dichotomously).
  c. the responses may receive a varying number of points.
  d. a and c



cuttiesgirl16

  • Sr. Member
  • ****
  • Posts: 345
Answer to Question 1

A

Answer to Question 2

C



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.

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.

Did you know?

In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).

Did you know?

Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.

Did you know?

There are 60,000 miles of blood vessels in every adult human.

For a complete list of videos, visit our video library