  The critical behavior of the Binder cumulant for Ising spin glasses in
dimension four are studied through simulation measurements. Data for the
bimodal interaction model are compared with those for the Laplacian interaction
model. Special attention is paid to scaling corrections. The limiting infinite
size value at criticality for this dimensionless variable is a parameter
characteristic of a universality class. This critical limit is estimated to be
equal to $0.523(3)$ in the bimodal model and to $0.473(3)$ in the Laplacian
model.
