The most internationally recognised and influential Australian quantitative psychologist of his era, Rod McDonald, has died in a snorkelling accident in Jamaica. Roderick Peter McDonald was born on April 16, 1928, in Sydney. His father was an accountant, his mother a trained nurse. Both were very “modern” parents, and encouraged him in academic pursuits and in his developing interest in classical music. At their waterfront house on the Parramatta River, Rod grew up with a enduring love for swimming and sailing.