  A strategy for computing the psibar-psi anomalous dimension at the fixed
point in infrared-conformal gauge theories from lattice simulations is
discussed. The method is based on the scaling of the spectral density of the
Dirac operator or rather its integral, the mode number. It is relatively cheap,
mainly for two reasons: (a) the mode number can be determined with quite high
accuracy, (b) the psibar-psi anomalous dimension is extracted from a fit of
several observables on the same set of configurations (no scaling in the
Lagrangian parameters is needed). As an example the psibar-psi anomalous
dimension has been computed in the SU(2) theory with 2 Dirac fermions in the
adjoint representation of the gauge group, and has been found to be 0.371(20).
In this particular case, the proposed strategy has proved to be very robust and
effective.
