Executive Summary
Companies are using cool new machine learning algorithms that crunch big data to measure engagement and forecast turnover risk. So who needs clunky, time-consuming employee surveys? You do. For decades, having regular employee opinion surveys has been on evidence-based lists of high-performance HR practices. And internal research at Facebook suggests that it would be a big mistake to abandon them, for three reasons: They’re still great predictors of behavior, they give employees the chance to feel heard, and they’re actually a vehicle for changing…