A similar study by Canadian researchers Thomas McKenzie and Brent Rushall showed that teenagers arrived more promptly at a swim practice when they were given an attendance sheet to record their arrival times.

• 加拿大研究人员托马斯·麦肯齐和布伦特·拉希尔所做的一项类似研究表明，在青少年拿到出勤单以纪录出勤时间后，他们会更加及时地赶到，参加游泳训练。