Overall performance correlations
Biret
Brailowsky
Chiu
Friere
Indjic
Luisada
Rubinstein 1938
Rubinstein 1966
Smith
Uninsky
Bi
Lu
Br
Ch
Fl
In
R8
R6
Sm
Un
Highest correlation
to Biret 1990
Lowest correlation
to Biret 1990