[michaelvkpdx]

Without any demographic data about who the interviewees were, this is basically useless. Are they all under 30, white and Asian men? Where?

[donall]

I can see that that would be interesting information to have, but why is it absolutely necessary?

[Xyik]

Fresh graduates are often better at programming / algorithm interviews than older experienced programmers who have been out of the interviewing game for a while. It's actually pretty important to know which demographic of users this data applies to.