De Haan, E., Bonneywell, S. & Gammons, S.
Coaching @ Work, 14.6, 32-36, 2019
Randomised controlled trials (RCTs) – a rarity in coaching – can help build a compelling argument for executive coaching. Erik de Haan, Sally Bonneywell and Sue Gammons report on what’s thought to be the largest ever RCT of a corporate coaching programme.