Peer evaluation dilemma

[egcasco]

Dear All,

I'm going through a project with my university classmates but we are asked to evaluate each other's contribution by assessing our effort in a peer evaluation form. In particular, we are asked to:

 

rate our collegues' contributions by assigning:

 

. maximum 100 points per person

. each one has to assign exactly 300 points

. not to assign any points to ourself

. differences between any score we assign to our mates has to be equal or superior to 5

. it can't be the case in which everyone has the same total score (but may be slightly different!)

 

we will receive a final note based on the note we receive as a group and, individually, by correcting it for a coefficient calculated as:

 

group final note * average score received by X / whole group's average score

 

 

The points is that we want to equally distribute our individual notes. we are 6 mates, and seems it is really difficult to go through it!

 

 

I tried solving with excel the problem and worked out for a 5 people group bu no for 6 people one! any idea?

 

thank you !!

[Mr Skeptic]

Clearly, the thing to do is to offer to give the people who don't like you points if they will give you points

 

Um, to distribute them equally, each will give the other on average 300/(6-1)=60 points. Lets call the people, Person A, B, C, D, E, F. Let Person A give points as follows:

A:0

B:50

C:55

D:60

E:65

F:70

----------

Total:300

 

For Person B, shift all of these numbers by one person, and likewise for the others. Then, on average, each person will receive exactly the same scores.

 

However, if you do it like this, it will be obvious to anyone that this was arranged. If that is a problem, you can use more random-looking numbers. In this case, take 300 points each, and divide them randomly into 5 numbers, and have each person give you one of those scores.