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 107 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
Wow, this really help

pangili4

  • Member
  • Posts: 346
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Did you know?

Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.

Did you know?

The average human gut is home to perhaps 500 to 1,000 different species of bacteria.

An example of color blindness test. A person with red-green color blindness would not be able to dis An example of color blindness test. A person with red-green color blindness would not be able to dis
Coagulase Test Coagulase Test
Performing a Spirometry Test to Measure Forced Vital Capacity Performing a Spirometry Test to Measure Forced Vital Capacity
Positive ring precipitin test. Positive ring precipitin test.
Morgan’s test-cross analysis of genetic linkage between autosomal genes Morgan’s test-cross analysis of genetic linkage between autosomal genes
Rate order question Rate order question
Video: Chloroplast Structure & Light Dependent Reactions (Photosystem 1 and 2 Cyclic Electron Flow)

For a complete list of videos, visit our video library