« previous next »

Author Question: The optimum item difficulty index for a multiple-choice item A) varies inversely with the number ... (Read 517 times)

mcmcdaniel

  • Hero Member
  • *****
  • Posts: 550
on: Jun 19, 2018
The optimum item difficulty index for a multiple-choice item
 
  A) varies inversely with the number of options.
  B) ranges from .30 to .70 for true-false tests.
  C) varies directly with the number of options.
  D) is unaffected by the number of options.

Question 2

The extent to which a test measures anything consistently is a definition of
 
  A) reliability. B) validity. C) normality. D) objectivity.


ttt030911

  • Sr. Member
  • ****
  • Posts: 315
Reply #1 on: Jun 19, 2018
Answer to Question 1

A

Answer to Question 2

A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The top 10 most important tips that will help you grow old gracefully include (1) quit smoking, (2) keep your weight down, (3) take supplements, (4) skip a meal each day or fast 1 day per week, (5) get a pet, (6) get medical help for chronic pain, (7) walk regularly, (8) reduce arguments, (9) put live plants in your living space, and (10) do some weight training.

Did you know?

The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

Did you know?

Medication errors are more common among seriously ill patients than with those with minor conditions.

Did you know?

In women, pharmacodynamic differences include increased sensitivity to (and increased effectiveness of) beta-blockers, opioids, selective serotonin reuptake inhibitors, and typical antipsychotics.

Did you know?

According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

Mammals posses a number of physiological pathways related to stress. One example is the hypothalamic Mammals posses a number of physiological pathways related to stress. One example is the hypothalamic
Digital rectal exam (DRE). The physician’s index finger is inserted into the rectum and pressed agai Digital rectal exam (DRE). The physician’s index finger is inserted into the rectum and pressed agai
Multiple-dose drug administration. Drug A and drug B are administered every 12 hours. Drug B reaches ... Multiple-dose drug administration. Drug A and drug B are administered every 12 hours. Drug B reaches ...
How to multiple imaginary numbers How to multiple imaginary numbers
On the Flexible Item Selection Task (FIST) children are presented with three cards On the Flexible Item Selection Task (FIST) children are presented with three cards
How mitosis maintains the chromosome number. How mitosis maintains the chromosome number.
Video: Secretin (inhibiting gastric acid secretion), Cholecystokinin (fat digestion) & Cholecystokinin

For a complete list of videos, visit our video library