|Typedia - Information on Type and Temperament|
"The purpose of the Myers-Briggs Type Indicator® is to make the theory of psychological types described by C. G. Jung (1921/1971) understandable and useful in people's lives. The essence of the theory is that much seemingly random variation in behavior is actually quite orderly and consistent, being due to basic differences in the way individuals prefer to use their perception and judgment."
-- from Chapter 1 of the 1985 MBTI® Manual: A Guide to the Development and Use of the Myers-Briggs Type Indicator®.
To make psychological type easier to understand it is often useful to use the model of temperament; which describes four distinct patterns of behavior using the MBTI preference scales of NF, NT, SJ, and SP.Keep in mind that the MBTI® Inventory is more than just questionnaire and a 4-letter code. To determine your best-fit Type, you need to set proper expectations, answer the questions as your core, preferred self, and then verify your type by reading and agreeing (or disagreeing!) with the associated profiles. Consultants, counselors, coaches, therapists and many other people with interests or training in psychology, human development, and social interaction may be certified to administer the MBTI instrument, discuss your results, and help you to verify your MBTI type, one on one or in a group. Regardless of where you take the inventory, be sure to answer each question based on your true values and feelings, not based on how you think you "should" respond or how someone else might expect you to respond! The MBTI inventory is not infallible . Results can vary based on your mood, whether you're at home or work, the day of the week, and more. If you find yourself thinking "I try to be like this" or "I need to be like that", stop, take a breath, and reconsider how you want to be, deep inside. In addition, it is important that you verify your results. The goal of the MBTI is to find your best fit type, not simply to accept a 4-letter code provided by a questionnaire you responded to on a given day. You can verify your type with the help of a someone who is qualified to assist in interpreting and explaining the different types. Or, you can verify your type by reading full descriptions of your suggested Type, as well as descriptions of alternative, possible types. In either case, you are encouraged to read additional profiles as well; many are available both online and offline (in books). ref: myersbriggs.org
-- from http://www.capt.org/