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An excellent way of doing the questionnaire was to have someone read it out to the person taking it, allowing half a minute for each question. The immediate response should have been given and, if possible, all the questions should have been answered.
The results were fascinating. They clearly showed that members of MENSA have unusually high scores on their introvertion and intuition scales. This makes them quite different from most members of the general public, where INs are relatively rare. To be precise, 5% of people are INs, but in MENSA this figure rises to nearly 40%! INs have strong skills in dealing with abstract ideas and theories, and abstract reasoning is required to pass the MENSA test. I also found that the conferences were dominated by INs which is, again, most unusual. These results have been written up in more detail in the June, 1990 issue of the MENSA magazine.
When the project was repeated five years later, many new members took part in the research so that nearly 3000 people were involved with the project. The results from this second project were even more fascinating, as they were virtually identical to the first project. These results, together with a number of graphs and tables, were published in the January, 1997 issue of the MENSA magazine. One of the graphs, which clearly illustrates the differences between MENSA members and members of the general population, is repeated below. Note especially the I/E and S/N split.
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