The screening technique is straightforward and not surprising: They have to filter a few people from possibly hundreds of resumes. They need a way to narrow it

The screening technique is straightforward and not surprising: They have to filter a few people from possibly hundreds of resumes. They need a way to narrow it down rapidly, even if imperfectly. They don't want to invest time in your resume if even you don't think you qualify. There's a false negative problem, as in all interviews: interviewing well is a different skill than engineering bottle caps. Still, confident, talented people who are on their toes and accustomed to pressure may respond convincingly. So will con artists and the self-deluding types like megalomaniacs, so there's also a false positive problem ...