Use the VOLP
The VOLP consists of a baseline questionnaire, which assesses a number of aspects of the the individuals workplace (if they are in some paid work) and their unpaid work. There is a followup questionnaire which assesses the productivity losses in the previous period of time.
There are long and short versions of the VOLP. The long version is a comprehensive questionnaire that includes components of absenteeism, presenteeism, unpaid work, job and work characteristics. The baseline long version is 8 pages long including 36 questions (about 20 mins) and the follow-up questionnaire varies depending on changes in employment status but is typcially much shorter.
The short version of the VOLP for multipliers only includes the key questions on job and workplace characteristics that enable the calculation of a valuation multiplier. The baseline short version is 2 pages (15 questions) and the follow-up is 1 page (6 questions). This can be used alongside the short VOLP outcome questionnaire which capture absenteeism, presenteeism and unpaid work or other similar questionnaires. For example the short VOLP for multipliers could be used alongside the WPAI (1 page), HLQ, PRODISQ.