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

Author Question: When calculating an item discrimination index for a test, you notice that one of your items yields a ... (Read 92 times)

theo

  • Hero Member
  • *****
  • Posts: 698
on: Jul 31, 2018
When calculating an item discrimination index for a test, you notice that one of your items yields a value of +1.00. What can be inferred from this value?
 
  a. Both high and low test scorers answered this item correctly
  b. The item is relatively easy
  c. High test scorers answered this correctly and those with low scores answered it incorrectly
  d. The item is relatively difficulty

Question 2

When calculating item difficulty, you find that a particular item yields a value of .85. What can be inferred from this value?
 
  a. Item is relatively easy
  b. 85 of students missed this item
  c. Item is relatively difficult
  d. 15 of students got this item correct


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

adammoses97

  • Sr. Member
  • ****
  • Posts: 337
Reply #1 on: Jul 31, 2018
Answer to Question 1

C

Answer to Question 2

A


theo

  • Member
  • Posts: 698
Reply 2 on: Jul 31, 2018
Great answer, keep it coming :)

EAN94

  • Member
  • Posts: 307
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Certain topical medications such as clotrimazole and betamethasone are not approved for use in children younger than 12 years of age. They must be used very cautiously, as directed by a doctor, to treat any child. Children have a much greater response to topical steroid medications.

Did you know?

Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.

Did you know?

The top five reasons that children stay home from school are as follows: colds, stomach flu (gastroenteritis), ear infection (otitis media), pink eye (conjunctivitis), and sore throat.

Did you know?

The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.

Did you know?

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

Assisting with a Pelvic Examination and Pap Test Assisting with a Pelvic Examination and Pap Test
Schematic drawing of a permeation test cell used to measure the permeation rate of chemicals through ... Schematic drawing of a permeation test cell used to measure the permeation rate of chemicals through ...
The Glycemic Index of Commonly Eaten Foods The glycemic index of a variety of foods The Glycemic Index of Commonly Eaten Foods The glycemic index of a variety of foods
Calculating Growth Rate of Bacteria Calculating Growth Rate of Bacteria
A test field of GM papaya A test field of GM papaya
Calculating the area of a circular ring Calculating the area of a circular ring
Video: Mechanisms of capillary exchange (transcytosis & bulk flow)

For a complete list of videos, visit our video library