Are You a Good Liar?, Alex Tabarrok asks. He then cites Richard Wiseman on The truth about lying and laughing:
Are you a good liar? Most people think that they are, but in reality there are big differences in how well we can pull the wool over the eyes of others. There is a very simple test that can help determine your ability to lie. Using the first finger of your dominant hand, draw a capital letter Q on your forehead.Some people draw the letter Q in such a way that they themselves can read it. That is, they place the tail of the Q on the right-hand side of their forehead. Other people draw the letter in a way that can be read by someone facing them, with the tail of the Q on the left side of their forehead. This quick test provides a rough measure of a concept known as “self-monitoring”. High self-monitors tend to draw the letter Q in a way in which it could be seen by someone facing them. Low self-monitors tend to draw the letter Q in a way in which it could be read by themselves.
High self-monitors tend to be concerned with how other people see them. They are happy being the centre of attention, can easily adapt their behaviour to suit the situation in which they find themselves, and are skilled at manipulating the way in which others see them. As a result, they tend to be good at lying. In contrast, low self-monitors come across as being the “same person” in different situations. Their behaviour is guided more by their inner feelings and values, and they are less aware of their impact on those around them. They also tend to lie less in life, and so not be so skilled at deceit.
Wiseman has a lot of interesting discoveries to share:
Other researchers have explored the development of deception in children. Some of the most interesting experiments have involved asking youngsters not to take a peek at their favourite toys. During these studies, a child is led into a laboratory and asked to face one of the walls. The experimenter then explains that he is going to set up an elaborate toy a few feet behind them. After setting up the toy, the experimenter says that he has to leave the laboratory, and asks the child not to turn around and peek at the toy. The child is secretly filmed by hidden cameras for a few minutes, and then the experimenter returns and asks them whether they peeked. Almost all three-year-olds do, and then half of them lie about it to the experimenter. By the time the children have reached the age of five, all of them peek and all of them lie. The results provide compelling evidence that lying starts to emerge the moment we learn to speak. Perhaps surprisingly, when adults are shown films of their children denying that they peeked at the toy, they are unable to detect whether their offspring are lying or telling the truth.