  In this paper we evaluate the renormalization constants and anomalous
dimensions for the squark wave function and mass within supersymmetric QCD.
These results complement the ones obtained in Ref. \cite{Harlander:2009mn} and
thus provide further confirmation on the applicability of dimensional reduction
to supersymmetric QCD at three-loop order. The three-loop anomalous dimension
constitute important input to precision predictions of the supersymmetric mass
spectrum as obtained from the evolution from the GUT to the TeV energy scale.
