> Enter Bloom, who helped design a test whereby 500 employees were divided into two groups--a control group (who continued working at HQ) and volunteer work-from-homers (who had to have a private room at home, at least six-month tenure with Ctrip, and decent broadband access as conditions).
Did it say volunteer? That already stains the results as control group and the test group are not similar. Maybe volunteers are already more productive than people that don't want to experiment?
> After a lottery draw, those employees with even-numbered birthdays were selected to work from home, and those with odd-numbered birthdates stayed in
the office to act as the control group.
Did it say volunteer? That already stains the results as control group and the test group are not similar. Maybe volunteers are already more productive than people that don't want to experiment?