The Bradford Factor or Bradford Formula is used in human resource management as a means of measuring worker absenteeism. The theory is that short, frequent, and unplanned absences are more disruptive than longer absences. According to the Chartered Institute of Personnel and Development the term was first coined due to its supposed connection with research undertaken by the Bradford University School of Management in the 1980s. According to the Financial Times, "HR folklore" has attributed its origins to a pharmaceuticals firm whose managers attended a seminar at Bradford Management School.[1] Bradford University has not confirmed that the Bradford Factor originated there.[1][2]