Comment by ars

That's not an accurate way of describing this.

The biographical screen was not flawed, it was designed to try to pass minority students at higher rates than non minority (for example that question on "your hardest topic" needing to be science). And it did exactly what it was designed to do.

Which had the effect of dramatically reducing the available candidates.

CTI never had preferential treatment, they simply were students who learned the skills needed to pass the actual ability test. That's not preferential treatment, that's exactly what school is meant to do.