Let us consider the following datafor two raters X and Y, two categories A and B and object 1 through 16 (n=16):
(see attached file for data)
(a) Construct the 2×2 contingency tablefor the two raters and two categories.
(b) Find the point estimate of the agreement between the two raters.
(c) Construct the 95% confidence intervalfor the agreement (use normal approximation.
I have attached my solution to a Microsoft Word document.
Here I will answer your question, using the following website as my resource – see this website for formulas and an extra explanation: http://www.john-uebersax.com/stat/raw.htm
a. Construct the 2×2 contingency table for the two raters and two categories:
Category A Category B
Rater Y Category A 7 1
Category B 1 7
b. Find …
This solution helps construct a contingency table for two raters and two categories. It helps find the point estimate of the estimate between two raters and construct a confidence interval for the agreement.