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

Author Question: A correlation coefficient is used in tool development to determine: a. equivalence of items. b. ... (Read 144 times)

naturalchemist

  • Hero Member
  • *****
  • Posts: 542
on: Jul 8, 2018
A correlation coefficient is used in tool development to determine:
 
  a. equivalence of items.
  b. reliability.
  c. stability.
  d. validity.

Question 2

Which of the following represents the same idea for physiological instruments as reliability does for psychosocial instruments?
 
  a. Accuracy
  b. Precision
  c. Selectivity
  d. Sensitivity


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Awesome

  • Sr. Member
  • ****
  • Posts: 280
Reply #1 on: Jul 8, 2018
Answer to Question 1

ANS: B
Reliability exists in degrees and is usually expressed as a form of correlation coefficient, with 1.00 indicating perfect reliability and .00 indicating no reliability.
Equivalence of items is determined with parallel forms reliability.
Test-retest reliability determines stability of an instrument.
Correlation coefficients do not determine validity.

Answer to Question 2

ANS: B
Reliability is concerned with the consistency of the measurement technique. Precision is the degree of consistency or reproducibility of measurements using physiological instruments. Thus precision is comparable with reliability.
Accuracy is connected with the validity of the instrument.
Selectivity has to do with whether an instrument can measure what the researcher wants while only measuring what the researcher wants.
Sensitivity refers to the ability of an instrument to detect minute changes between measures and/or subjects.


naturalchemist

  • Member
  • Posts: 542
Reply 2 on: Jul 8, 2018
Excellent

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

« previous next »
 

Did you know?

Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.

Did you know?

The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.

Did you know?

A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.

Did you know?

The toxic levels for lithium carbonate are close to the therapeutic levels. Signs of toxicity include fine hand tremor, polyuria, mild thirst, nausea, general discomfort, diarrhea, vomiting, drowsiness, muscular weakness, lack of coordination, ataxia, giddiness, tinnitus, and blurred vision.

Did you know?

If you could remove all of your skin, it would weigh up to 5 pounds.

Photograph illustrating the development of an embryo. Photograph illustrating the development of an embryo.
Colorectal cancer. The most common sites of tumor development are shown. Colorectal cancer. The most common sites of tumor development are shown.
Charge development is unfavorable and can be circumvented by donation of a proton Charge development is unfavorable and can be circumvented by donation of a proton
A TECH 2 scan tool is the factory scan tool used on General Motors vehicles. A TECH 2 scan tool is the factory scan tool used on General Motors vehicles.
The positive correlation between the ability of various neuroleptics to bind to D2 receptors and ... The positive correlation between the ability of various neuroleptics to bind to D2 receptors and ...
Development of the Reproductive Systems Development of the Reproductive Systems
Video: Wound Cultures

For a complete list of videos, visit our video library