They reported that "a number of people stole candy without completing a questionnaire or took more than their share without permission".
First they recruited 34 students who were offered €2.50 ($3.30) for completing a questionnaire within the subsequent three weeks.
You can take the strain out of doing the sums by completing a questionnaire at www.inlandrevenue.gov.uk/taxcredits to see if you qualify for CTC and the childcare element of the Working Tax Credit (WTC).
Membership isn't required, and travelers can plan a trip by visiting the site and completing a questionnaire that covers their desired destination, budget, hobbies and whether they want a more active or laid-back getaway.
While a little more than half, or 56 percent, of the companies using incentives required employees to sign up for programs like health coaching or completing a questionnaire, 24 percent tied their incentives to progress on measures like a person's blood pressure or body mass index.
The process began with each postdoc completing a questionnaire.
Participation involved completing a questionnaire package in hospital, and at one, four, and twelve months post-injury.
On Day 6 and Day 16 after embryo transfer, they rated side effects and patient inconvenience into four grades: none, mild, moderate and severe by completing a questionnaire.
Enhanced screening - which involves passengers having their temperature taken and completing a questionnaire about their health - was rolled out at some UK airports, including Heathrow, in October.
Six experienced surgical residents and surgeons assessed the effectiveness of the simulator as a viable training tool by completing a questionnaire designed specifically for this study after using the simulator.
Twelve school students evaluated each of the backpacks firstly by examining them, again after donning them and again after walking with them on a treadmill by completing a questionnaire asking about the appearance, function and comfort of each backpack.
