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Author Question: Identify the basic concern with using the percentage of agreement as a measure of inter-rater ... (Read 61 times)

fnuegbu

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on: Jun 19, 2018
Identify the basic concern with using the percentage of agreement as a measure of inter-rater reliability and explain how this concern is addressed by Cohen's kappa.
 
  What will be an ideal response?

Question 2

Which of the following is the most useful descriptive statistic for measuring dispersion?
 
  a. range
  b. variance
  c. mean deviation
  d. standard deviation


dajones82

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Reply #1 on: Jun 19, 2018
Answer to Question 1

The percentage of agreement between two raters can be inflated because some of the agreements may be simply due to chance. Cohen's kappa corrects for this inflation by correcting the percentage by adjusting for chance agreements.

Answer to Question 2

D


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