single-blind study. single-blind study. Etymology: L, singulus, one by one; AS, blind + L, studere, to be busy. an experiment in which the person collecting data knows whether the subject is in the control group or the experimental group, but subjects do not. See also double-blind study.
The suit alleges that Pizza Hut's mandatory delivery fees give customers the impression that they are part of the tip, but drivers receive no portion of it, says the Associated Press.he Hut isn't the only pizza chain to get backlash from employees on shady fee practices: Last year, U.K. chain Pizza Express came under fire for keeping 8 percent of its workers' credit card tips, which it claimed was to cover credit card processing fees.
Customers will pay the same amount to the store no matter how much of the price they can disguise as a delivery charge. Enjoy your $9.99 large pizza. Oh, and there's a $10 delivery charge.he fee is not called a driver charge but we know the phrase delivery charge is very misleading. The surcharge covers the rising cost of ingredients, hourly wages for employees other than the drivers, the store's automobile insurance for non-owned vehicles and all other business expenses.