Is there any personality difference based on sex, marriage, or age? This study tried to answer that question by conducting a survey measuring egogram developed by J. Dusay. This study included 225 subjects living in Chungcheongnam-Do. Principal results are as follows: male appeared more critical and reasonable than female; the married group was more reasonable, nurturing, and critical than the non-married one, while the non-married group showed a freer, and more adaptive attitude than the married one; in the married group, male was more critical and reasonable than female, whereas in the non-married group female was freer and more nurturing than male; the thirties appeared more reasonable and critical than the twenties, while the twenties were freer and more adaptive than the thirties.