The Similarity of Two Participants
   Peter P. Wakker, December 2009

Number of joint categories (denoted j) =  3.
Number of father/not-mother categories (denoted f) =  2.
Number of mother/not-father categories (denoted m) =  5.

N, the upper bound for # of categories, is  80.
 
The similarity based only on the seriousness weights
for the categories brought up by one or both is
0.8071.
 
The similarity for the number of categories, without
consideration of the seriousness weights, is
0.5509.
 
 
The total similarity index between participant #  2 and participant #  1
is
 
                          0.6790.