Formula of Paired Comparison with an example

Question

Illustrate the formula of Paired Comparison also give an example?

Answer 1

This may be calculated by a formula N (N — 1)12 where N is the total number of persons to be compare d. Where N is the total number of persons to be evaluated.

For example

If the following five teachers have to be evaluated by the Vice Chanceller of a University : Chinmay ( c), Mohan (M), Rohit (R), Vishal (V), and Basanti (B), the above formula gives 5 (5— 1)/2 or 10 pairs. These are;

CwithM,

CwithR MwithR

CwithV MwithV RwithV

CwithB MwithB RwithB VwithB

Thus, the pairs to be compared give the maximum possible combinations in which an employee could be compared with one another. If an employee sores better number of times as compared to other employee is considered better, makes his/her score. Such scores are considered for each worker and he/she is ranked according to his/her score. This method cannot work when large number of employee is compared.