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Author Question: When validity of an instrument is determined, the nurse researcher assesses what? (Select all that ... (Read 39 times)

moongchi

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on: Jul 8, 2018
When validity of an instrument is determined, the nurse researcher assesses what? (Select all that apply.)
 
  a. Stability
  b. Variance
  c. Accuracy
  d. Precision

Question 2

The nurse researcher notes that test-retest correlations were r = 0.79 when given over 4-week intervals. This is interpreted to indicate what?
 
  a. Equivalence
  b. Discriminability
  c. Reliability
  d. Homogeneity


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yuyiding

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Reply #1 on: Jul 8, 2018
Answer to Question 1

ANS: C, D

Feedback
Correct Accuracy refers to instrument validity.
Precision refers to instrument reliability.
Incorrect Stability refers to instrument reliability.
Variance refers to error.

Answer to Question 2

ANS: C

Feedback
A This response is one type of reliability.
B This response refers to a type of validity.
C The example of test-retest correlations fits reliability.
D Test-retest procedures establish stability of instruments, not homogeneity.


moongchi

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  • Posts: 516
Reply 2 on: Jul 8, 2018
Great answer, keep it coming :)

Alyson.hiatt@yahoo.com

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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