Here; not much that is surprising, although I found this amusing:

Notably, philosophers in the field of moral philosophy, and those who are publicly involved in advisory activities, tend to evaluate philosophers’ moral judgment capacity as stronger, while analytic philosophers tend to reject this view.

Far be it from me to pretend to "moral expertise," but this finding does suggest that moral philosophers are prone to rather self-serving assessments!

(Thanks to Michael Magoulias for the pointer.)