My cousin, Ruth Artmonsky, who has died aged 94, was a pioneer in the commercial use of psychometric testing. Together with her second husband, Roger Holdsworth, and their associate Peter Saville, she was a founder in 1977 of the consultancy Saville & Holdsworth (later SHL), which started in their living room and went on to become a global corporation with offices in 30 countries. After selling her share in the company in 1997, Ruth used her self-taught knowledge of the arts to set up and run he