I'm afraid that assessment of programming skills based on verbal expression makes you vulnerable to many errors and biases. Sure, you'll quickly filter out inco

I'm afraid that assessment of programming skills based on verbal expression makes you vulnerable to many errors and biases. Sure, you'll quickly filter out incompetent candidates but along with them you'll most likely flush out some really good ones, because programming and communication are two different competences and they doesn't have to be correlated. At least not positively ;) Plus, it's generally bad idea to assess two competences on one observed behavior. You're "saving time" on the expense of clarity and precision of judgement.