At our specific agency, 90% of new hires are graduates fresh out of university, so we look for candidates to prove that they can program (at all).
We give a pen-and-paper programming test that candidates complete unsupervised, testing fundamental programming skills (no special data structures or compsci) as well as a database design and diagramming task.
This is very successful at weeding out the bottom 50% of candidates, who, despite just finishing their Computing degrees, cannot write or describe a working computer program. But we can conduct the test without openly embarrassing the candidate.
We're a place where coders share, stay up-to-date and grow their careers.
We strive for transparency and don't collect excess data.