A Quantitative Review of Performance Feedback in Organizational Settings (1998-2018)

Sleiman and his team looked at 96 real-world feedback programs. They ran from 1998 to 2018 and covered offices, stores, clinics, and factories.

The authors used meta-analysis. They pooled every number to see how much feedback lifts adult job performance.

Feedback won big. The average effect was large to very large, no matter the industry.

In plain words, workers who got clear, data-based feedback routinely doubled or tripled their output quality.

The boost showed up fast and held for months when feedback stayed in place.

Luna et al. (2026) extends these results. They gave factory workers AI-enhanced video clips plus a short talk. Three of four workers reached safer postures in under a week. Their smaller, high-tech study echoes the big, broad finding: feedback still works when you dress it up with new tech.

Boudreau et al. (2015) gives the why. The earlier review says feedback is just good, old-fashioned reinforcement delivered right after the behavior. Sleiman’s huge numbers now back that story with hard data.

Veenman et al. (2018) ran a similar meta trick in grade schools. They found small-to-medium gains with group behavior plans, while Sleiman found large gains with adult feedback. Different ages, same meta method — together they show behavior science scales from classrooms to cubicles.

You already use feedback with staff and parents. This paper says keep going — and tighten it. Give numbers right after the shift, every shift. One minute of graphs plus one sentence of praise can double productivity tomorrow.