Ian Brace, based in Oxford, UK, is a fellow of the MRS and runs training courses on questionnaire design. He was previously director of research methods at TNS UK and a visiting professor in market research at Bristol Business School. Kate Bolton, based in Surrey, UK, is a certified member of the MRS and has been its key industry trainer for questionnaire design for over 20 years as well as being an examiner for the MRS Advanced Certificate. She previously led the Foundations Research Skills Programmes at Kantar.