  The mass anomalous dimension is determined in SU(2) gauge theory coupled to
$N_f$ fermions in the adjoint representation for $N_f = 2$, $3/2$, $1$ and
$1/2$, where half-integer flavor numbers correspond to Majorana fermions. The
numerical method is based on gradient flow. The results show near-conformal
behavior for $N_f = 2$, $3/2$ and $1$. Particular emphasis is placed on $N_f =
2$, which is relevant for a strongly interacting extension of the Standard
Model and has been studied in several previous investigations. We check whether
the method is able to resolve discrepancies in earlier results for this theory.
Overall, the method based on the gradient flow delivers reliable results in
qualitative agreement with previously known numerical data.
