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The first group was given the same instructions as the participants in Guilford’s experiment.The second group was told that the solution required the lines to be drawn outside the imaginary box bordering the dot array.No one, that is, before two different research teams—Clarke Burnham with Kenneth Davis, and Joseph Alba with Robert Weisberg—ran another experiment using the same puzzle but a different research procedure.Both teams followed the same protocol of dividing participants into two groups.The correct solution, however, requires you to draw lines that extend beyond the area defined by the dots.At the first stages, all the participants in Guilford’s original study censored their own thinking by limiting the possible solutions to those within the imaginary square (even those who eventually solved the puzzle).Because the solution is, in hindsight, deceptively simple, clients tended to admit they should have thought of it themselves.Because they hadn’t, they were obviously not as creative or smart as they had previously thought, and needed to call in creative experts. The nine-dot puzzle and the phrase “thinking outside the box” became metaphors for creativity and spread like wildfire in marketing, management, psychology, the creative arts, engineering, and personal improvement circles.
Would you like to guess the percentage of the participants in the second group who solved the puzzle correctly?He challenged research subjects to connect all nine dots using just four straight lines without lifting their pencils from the page.Today many people are familiar with this puzzle and its solution.Although studying creativity is considered a legitimate scientific discipline nowadays, it is still a very young one. One of Guilford’s most famous studies was the nine-dot puzzle. Guilford was one of the first academic researchers who dared to conduct a study of creativity.