[hallmark]

Based on your other comment, does this mean you use a commercial or custom general mental ability test in the funnel before screening and interviews?

It would be helpful to know more about what you do versus what you don't.

[saturdayplace]

You can read about tptacek's company's process here: http://matasano.com/careers/. It really does seem like a good way to learn whether a candidate will be able to perform the job.

[tptacek]

We do not use "general mental ability" tests.