The ISTJ personality type

People with the ISTJ personality type enjoy taking responsibility for their actions, and take pride in the work. They do not stint on their time and energy and finish each task with accuracy and patience. ISTJs don't make assumptions, preferring instead to analyze their surroundings, check their facts and arrive at practical courses of action. ISTJs have little tolerance for indecisiveness, but lose patience even more quickly if their chosen course is challenged with impractical theories, especially if they ignore key details—if challenges become time-consuming debates. ISTJs can become noticeably angry as deadlines draw nearer.

This sense of personal integrity is core to ISTJs and goes beyond their own minds. ISTJ ...

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