« previous next »

Author Question: If X is independent of Y, the safest Y pred., given information about X, is the mean of the Y ... (Read 29 times)

ghost!

  • Hero Member
  • *****
  • Posts: 560
on: Jun 20, 2018
If X is independent of Y, the safest Y pred., given information about X, is the mean of the Y distribution.
 
  Indicate whether the statement is true or false

Question 2

Another researcher attempted to shorten the NCAA test
  shown above and reduced the number of items to only 20. The mean on this
  revision was 10 with an SD of 3. Find its KR21 reliability.
 
  What will be an ideal response?


nathang24

  • Sr. Member
  • ****
  • Posts: 314
Reply #1 on: Jun 20, 2018
Answer to Question 1

T

Answer to Question 2

KR21 = .468


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

GI conditions that will keep you out of the U.S. armed services include ulcers, varices, fistulas, esophagitis, gastritis, congenital abnormalities, inflammatory bowel disease, enteritis, colitis, proctitis, duodenal diverticula, malabsorption syndromes, hepatitis, cirrhosis, cysts, abscesses, pancreatitis, polyps, certain hemorrhoids, splenomegaly, hernias, recent abdominal surgery, GI bypass or stomach stapling, and artificial GI openings.

Did you know?

Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.

Did you know?

Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.

Did you know?

The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.

Did you know?

Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.

Coding of Olfactory Information Coding of Olfactory Information
Laboratory Requisition Information Laboratory Requisition Information
The CHRIS manual entry for toluene. Useful information includes response information, chemical and ... The CHRIS manual entry for toluene. Useful information includes response information, chemical and ...
The CAMEO entry for chlorine. Useful information includes chemical and physical properties, personal ... The CAMEO entry for chlorine. Useful information includes chemical and physical properties, personal ...
The five skills of the element Collection of Information The five skills of the element Collection of Information
The following information relates to the Cutting Department of Kittina Corporation for the ... The following information relates to the Cutting Department of Kittina Corporation for the ...
Video: Lower Limb Arteries Animation

For a complete list of videos, visit our video library