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 153 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
Thanks for the timely response, appreciate it

tandmlomax84

  • Member
  • Posts: 323
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

As many as 28% of hospitalized patients requiring mechanical ventilators to help them breathe (for more than 48 hours) will develop ventilator-associated pneumonia. Current therapy involves intravenous antibiotics, but new antibiotics that can be inhaled (and more directly treat the infection) are being developed.

Did you know?

The Food and Drug Administration has approved Risperdal, an adult antipsychotic drug, for the symptomatic treatment of irritability in children and adolescents with autism. The approval is the first for the use of a drug to treat behaviors associated with autism in children. These behaviors are included under the general heading of irritability and include aggression, deliberate self-injury, and temper tantrums.

Did you know?

There are 20 feet of blood vessels in each square inch of human skin.

Did you know?

The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.

Did you know?

Blood is approximately twice as thick as water because of the cells and other components found in it.

Eudicot leaf development and structure. Eudicot leaf development and structure.
Two items from the incomplete-pictures test. H.M.’s memory for the 20 items on the test was ... Two items from the incomplete-pictures test. H.M.’s memory for the 20 items on the test was ...
The development of an ovary and a testis from the cortex and the medulla, respectively, of the ... The development of an ovary and a testis from the cortex and the medulla, respectively, of the ...
Economic and Social Development Economic and Social Development
Development of the Heart Development of the Heart
Early stages of embryonic development in Drosophila Early stages of embryonic development in Drosophila
Video: Pericarditis

For a complete list of videos, visit our video library