Final answer:
To calculate the reliability coefficient, use the Pearson product-moment correlation formula and correlate the scores. Plug in the values for the formula and calculate the coefficient using the given data.
Step-by-step explanation:
The reliability coefficient, also known as Pearson's product-moment correlation coefficient (r), is used to determine the reliability of a linear relationship between variables. In your case, you need to calculate the interrater reliability coefficient by correlating the Initial interview rating by the HR recruiter with the Interview rating of the supervisor.
To calculate the reliability coefficient, you can use the formula:
r = (nΣxy - ΣxΣy) / √((nΣx^2 - (Σx)^2)(nΣy^2 - (Σy)^2))
Plug in the values of n (sample size), Σxy (sum of product of scores), Σx (sum of HR recruiter's scores), Σy (sum of supervisor's scores), Σx^2 (sum of squared HR recruiter's scores), and Σy^2 (sum of squared supervisor's scores) into the formula to find the reliability coefficient.