Discussion of Results

The results of the experiment show slight differences between both the average times of interview and average number of gestures between extroverted and introverted subjects. Not only did the extroverted subjects tend to have higher total times due to longer response times, but they also were shown to use a slightly greater number of gestures while expressing themselves or describing the details of a past experience. The introverted subjects, on the other hand, took less time to answer the questions and used less gestures while doing so.

The difference of time and number of gestures was expected; however another unexpected observation was also made during the course of the interviews. It was observed that subjects with different personality traits also made different kinds of gestures. Certain gestures such as leaning back, playing with hair, the resting of hands on a solid surface, and prolonged contact between hands characterized introverted subjects. This is not to say that extroverted subjects did not perform a couple of these getures, however it was definitely rare. Perhaps these gestures are used to distract attention away from the face or are signs of discomfort. Because the subjects were all questioned one on one in a quiet room, it is possible that an introverted subject would feel shy or uncomfortable. Certain aggressive and exaggerated gestures such as the clenching of fists, leaning forward, repetitive contact between hands, the spreading out of arms, and drastic change of the position of the body characterized extroverted subjects only. Reinactment of a past situation using both the hands and the body were much more common in the extroverts. Because extroverts are used to talking and are more willing and able to exress themselves, they are given to using more gestures of emphasis and situational explanation.