If you have tried solving this puzzle, you can confirm that your first attempts usually involve sketching lines inside the imaginary square.The correct solution, however, requires you to draw lines that extend beyond the area defined by the dots.Would you like to guess the percentage of the participants in the second group who solved the puzzle correctly?Most people assume that 60 percent to 90 percent of the group given the clue would solve the puzzle easily. What’s more, in statistical terms, this 5 percent improvement over the subjects of Guilford’s original study is insignificant.Both teams followed the same protocol of dividing participants into two groups.The first group was given the same instructions as the participants in Guilford’s experiment.
They are much more common than you probably think.*From Inside the Box: A Proven System of Creativity for Breakthrough Results Copyright 2014 Drew Boyd There are many theories of creativity.
In other words, the difference could easily be due to what statisticians call sampling error.
Let’s look a little more closely at these surprising results.
Today many people are familiar with this puzzle and its solution.
In the 1970s, however, very few were even aware of its existence, even though it had been around for almost a century.