Original sentence: 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.It was developed as a way of highlighting the disproportionate level of disruption on an organisation's performance that can be caused by short-term absence compared to single incidences of prolonged absence
Edited sentence: 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, however there is no record of any research having been carried out.It was developed as a way of highlighting the disproportionate level of disruption on an organisation's performance that can be caused by short-term absence compared to sinle incidences of prolonged absence