On the whole, the ISTZ is a no-nonsense type of individual who is exceedingly dependable. You are the most practical of all the personality types, skillfully saving data, money, and materials. Accuracy is paramount for ISTZs; you absorb information and remember details thoroughly. People can lean on you with good cause. You never undertake any enterprise or relationship impulsively or frivolously, nor will you forsake it for any but the soundest and most well-documented of reasons. You seek financial security and stability; that, however, does not preclude you from being generous with others.
In all probability, you and other ISTZs will be attracted to business, commerce, or technical arenas where you will excel with your ability to match the competencies and credentials of colleagues. You can easily shift gears and change course if you have the necessary data to support such decisions. Too much illogical change can make an ISTZ uneasy, however, and sometimes irritable as well. You avoid any more change than is absolutely necessary, especially if it is rapid or does not bring an obvious improvement. Preferring the predictable, you want to know where things are and when events will happen. You value an orderly home life emphasizing traditional values.
You tend to take care of your possessions (office equipment, household furnishings, etc.) and can become unsettled by waste and conspicuous consumption. You expect a great deal from yourself and use tough standards to judge your own behaviour.
The ISTZ’s view of life is so strongly linked to the work ethic that you feel play must be earned by having first worked diligently. Those with the talents of an ISTZ are often “discovered,” and many times wind up in successful partnerships. ISTZs establish and maintain organisations. You have probably found that once you have become a member of an organisation, you quickly accept positions of responsibility. Look at the bedrock of any organisation — officers, founders, and chairs of the working committees—and you will find individuals with your super-dependable ISTZ personality among the members.
You need peace and time alone to work most comfortably. Putting in long hours on a project without a break does not bother you. You take pride in your contributions to a project and develop great interest in all facets of whatever job you tackle. Overall, your valuable, systematic approach to problem solving and perseverance in finding solutions lends stability to any cause with which you are associated.
Boundless Diversity (A/Z): An Introduction to the Golden Personality Type Profiler
Karen A. Deitz, Ph.D. and John P. Golden, Ed.D.