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 89 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
YES! Correct, THANKS for helping me on my review

jojobee318

  • Member
  • Posts: 298
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Never take aspirin without food because it is likely to irritate your stomach. Never give aspirin to children under age 12. Overdoses of aspirin have the potential to cause deafness.

Did you know?

Hip fractures are the most serious consequences of osteoporosis. The incidence of hip fractures increases with each decade among patients in their 60s to patients in their 90s for both women and men of all populations. Men and women older than 80 years of age show the highest incidence of hip fractures.

Did you know?

It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.

Did you know?

People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.

Did you know?

The term pharmacology is derived from the Greek words pharmakon("claim, medicine, poison, or remedy") and logos ("study").

Knee Reflex Test Knee Reflex Test
The Wug Test The Wug Test
Items that would be difficult to replace bearing legal significance are sent by certified mail. Items that would be difficult to replace bearing legal significance are sent by certified mail.
A general model of the sensorimotor system. Notice its hierarchical structure, functional ... A general model of the sensorimotor system. Notice its hierarchical structure, functional ...
Data for Calculating Productivity Growth in Erewhon Data for Calculating Productivity Growth in Erewhon
Calculating genotype frequencies from allele frequencies Calculating genotype frequencies from allele frequencies
Video: Virtual Tour of the Heart

For a complete list of videos, visit our video library