Great writeup on current HR practices:

Google HR Practices.jpg
  • beware of creating a situation where an interview is spent trying to confirm what you think of someone, rather than truly assessing them.

  • most interviews are a waste of time

  • …serve primarily to make the interviewer feel clever and self-satisfied. They have little if any ability to predict how candidates will perform in a job.

  • Unstructured interviews have an r2 of 0.14, meaning that they can explain only 14% of an employee’s performance.

  • somewhat ahead of reference checks explaining 7% of performance

  • ahead of the number of years of work experience 3%

  • The best predictor of how someone will perform in a job is a work sample test 29% which can’t predict performance perfectly, since actual performance also depends on other skills such as how well you collaborate with others, adapt to uncertainty, and learn.

  • 2nd best predictors of performance are tests of general cognitive ability 26%

  • structured interviews 26% candidates are asked a consistent set of questions with clear criteria to assess the quality of responses. 2 two kinds: behavioral & situational.

https://www.wired.com/2015/04/hire-like-google