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

Author Question: A researcher is constructing a test for use in a study. In order to insure the highest reliability, ... (Read 108 times)

kshipps

  • Hero Member
  • *****
  • Posts: 571
on: Jun 20, 2018
A researcher is constructing a test for use in a study. In order to insure the highest reliability, the researcher should
 
  a. increase the number of items on the test.
  b. plan to increase item homogeneity.
  c. try out the test on a heterogeneous group.
  d. All of these are true.

Question 2

A researcher has constructed an attitude scale in which each item is scored from 1 to 5 depending on the extent of agreement or disagreement. The estimate of score reliability that would be recommended for this scale is
 
  a. Kuder-Richardson formula 20.
  b. Kuder-Richardson formula 21.
  c. Cronbach's coefficient alpha.
  d. biserial correlation coefficient.
  e. phi coefficient.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

swimkari

  • Sr. Member
  • ****
  • Posts: 332
Reply #1 on: Jun 20, 2018
Answer to Question 1

D

Answer to Question 2

C


kshipps

  • Member
  • Posts: 571
Reply 2 on: Jun 20, 2018
Thanks for the timely response, appreciate it

Jsherida

  • Member
  • Posts: 314
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Did you know?

Opium has influenced much of the world's most popular literature. The following authors were all opium users, of varying degrees: Lewis Carroll, Charles, Dickens, Arthur Conan Doyle, and Oscar Wilde.

Did you know?

Women are 50% to 75% more likely than men to experience an adverse drug reaction.

Did you know?

Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.

Did you know?

Many medications that are used to treat infertility are injected subcutaneously. This is easy to do using the anterior abdomen as the site of injection but avoiding the area directly around the belly button.

Weber test: Place the base of the tuning fork on top of the client’s head. Weber test: Place the base of the tuning fork on top of the client’s head.
The Five-Highest Paid CEOs The Five-Highest Paid CEOs
Badly burned exhaust valve. A compression test could have detected a problem, and a cylinder ... Badly burned exhaust valve. A compression test could have detected a problem, and a cylinder ...
Case Study of a Midlatitude Cyclone Case Study of a Midlatitude Cyclone
Starch iodine test for alpha amylase. Starch iodine test for alpha amylase.
Study Duddy 2 Study Duddy 2
Video: Global warming and its effect on climate change

For a complete list of videos, visit our video library