Sadler was the IoP Young Professional Physicist of the Year in 2005 Robert Matthews is a Fellow of the Royal Statistical Society, a Chartered Physicist, a Member of the Institute of Physics, and a Fellow of the Royal Astronomical Society.
Sadler, 2005 yılında Yılın IoP Genç Profesyonel Fizikçi idi Robert Matthews Kraliyet İstatistik Derneği, Yeminli Fizikçi, Fizik Enstitüsü Üyesi ve Royal Astronomical Society Fellow bir üyesidir.