for the test, you can take it here.
ISTJs are often called inspectors. They have a keen sense of right and wrong, especially in their area of interest and/or responsibility. They are noted for devotion to duty. Punctuality is a watchword of the ISTJ.
As do other Introverted Thinkers, ISTJs often give the initial impression of being aloof and perhaps somewhat cold. Effusive expression of emotional warmth is not something that ISTJs do without considerable energy loss.
ISTJs are most at home with "just the facts, Ma'am." They seem to perform at highest efficiency when employing a step-by-step approach. Once a new procedure has proven itself (i.e., has been shown "to work,") the ISTJ can be depended upon to carry it through, even at the expense of their own health.
ISTJs are easily frustrated by the inconsistencies of others, especially when the second parties don't keep their commitments. But they usually keep their feelings to themselves unless they are asked. And when asked, they don't mince words. Truth wins out over tact. The grim determination of the ISTJ vindicates itself in officiation of sports events, judiciary functions, or an other situation which requires making tough calls and sticking to them.
Inspector Guardians look carefully and thoroughly at the people and institutions around them. Making up perhaps as much as ten percent of the general population, Inspectors are characterized by decisiveness in practical affairs, are the guardians of institutions, and if only one adjective could be selected, "superdependable" would best describe them. Whether at home or at work, Inspectors are nothing if not dependable, particularly when it comes to examining the people and products they are responsible for-quietly seeing to it that uniform quality is maintained, and that those around them uphold certain standards of attitude and conduct.
These quiet, no-nonsense Guardians have a distaste for and distrust of fanciness in speech, dress, and living space. Their words tend to be simple and down-to-earth, not showy or high-flown; their clothes are often homespun and conservative rather than of the latest fashion; and their home and work environments are usually neat, orderly, and traditional, rather than up-to-date or luxurious. In their choice of personal property (cars, furnishings, jewelry, and so on) price and durability are just as important as comfort or appearance.
