In the 1970's two independent research firms developed the Big 5 Personality theory. Through methods of factor analysis they found that each human being has five different major categories of personality. These categories are:
Closed-Minded --- Open to New Experiences
Disorganized --- Conscientious
Introverted --- Extraverted
Disagreeable --- Agreeable
Calm/Relaxed --- Nervous/High-Strung
After taking a Big 5 personality test, each individual will score somewhere between the two extremes in each category. Try one or more of the tests in this category to find out how you fit into this rubric of categorization.?