This topic contains a solution. Click here to go to the answer

Author Question: Which is true regarding the item characteristic curve, or S curve, in Item Response Theory (IRT)? ... (Read 80 times)

yoooooman

  • Hero Member
  • *****
  • Posts: 557
Which is true regarding the item characteristic curve, or S curve, in Item Response Theory (IRT)?
 
  a. It assumes that as people's abilities increase, their probability of answering the item correctly decreases.
  b. A tall S means that an item has difficulty discriminating across ability.
  c. IRT and the S curve assist in writing items to target specific ranges of ability.
  d. It is useful in predicting the Standard Error of the Estimate.

Question 2

Which of the following is true regarding Classical Test Theory and/or Item Response Theory (IRT)?
 
  a. Classical Test Theory provides more sophisticated information regarding test items.
  b. IRT examines items individually to assess their ability to measure the trait.
  c. In IRT, test items are viewed as a whole in an attempt to reduce measurement error.
  d. As reliability increases in Classical Test Theory, the measurement error increases.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ecox1012

  • Sr. Member
  • ****
  • Posts: 344
Answer to Question 1

ANSWER: c

Answer to Question 2

ANSWER: b




yoooooman

  • Member
  • Posts: 557
Reply 2 on: Jul 30, 2018
Excellent


Hdosisshsbshs

  • Member
  • Posts: 315
Reply 3 on: Yesterday
Wow, this really help

 

Did you know?

In 2006, a generic antinausea drug named ondansetron was approved. It is used to stop nausea and vomiting associated with surgery, chemotherapy, and radiation therapy.

Did you know?

Approximately 25% of all reported medication errors result from some kind of name confusion.

Did you know?

Street names for barbiturates include reds, red devils, yellow jackets, blue heavens, Christmas trees, and rainbows. They are commonly referred to as downers.

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

Did you know?

The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.

For a complete list of videos, visit our video library