There are many different ways of taking off T-shirts. There are some ways which both males and females use and there are some ways which only a particular sex uses.
Characteristic has a close link with taking off T-shirts.
Get 40 men and 40 women. Their age range is from 10 - 50 years old. Give them a T-shirt each and ask them to put it on. Give a counting of 1,2,3 and tell them to take off the T-shirt. Observe closely, record the methods they used and time.