The ISTJ personality is defined by dependability and perseverance.  ISTJs are quiet, serious, responsible, loyal individuals who believe in time-honored laws and traditions, and possess a deep desire to promote security and peaceful living.  Usually preferring to work alone, ISTJs do best in careers in which they can use their organizational skills and powers of concentration to create order and structure and therefore fit well into management positions.  ISTJs represent approximately 6% of the general population.  The following list represents some careers that may appeal to ISTJs.

Accountant
Actuary
Architect
Archivist
Association manager/advisor
Auditor
Bank examiner
Biology specimen technician
Biomedical technologist
Chief information officer
Computer engineer
Computer programmer/specialist
Construction manager
Coroner
Corrections officer
Cost estimator
Court clerk
Credit analyst
Criminalist or ballistics expert
Database administrator
Dentist
EEG technologist/technician
Efficiency expert/analyst
Environmental compliance inspector
Environmental science technician
Estate planner
Exercise physiologist
Fire prevention and protection specialist
Geologist
Government employee
Hardware engineer
Hardware/software tester
Immigration and customs inspector
Industrial safety and health engineer
Insurance claims examiner/underwriter
Investment securities officer
IRS agent
Judge
Lab technologist
Landscape architect
Law researcher
Librarian
Manager/supervisor
Mechanical/industrial/electrical engineer
Medical records technician
Medical researcher
Meteorologist
Nursing administrator
Office manager
Optometrist
Orthodontist
Paralegal/legal secretary
Pharmacist/pharmacy technician
Physician
Pilot (commercial)
Police officer/detective
Probation officer
Property manager (commercial/residential)
Public health officer
Purchasing agent and contract specialist
Real estate agent
Regulatory compliance officer
School principal         
Sport equipment/merchandise sales
Statistician
Surgeon
Surgical technologist
Systems analyst
Tax preparer and examiner
Teacher (technical, industrial, math, physical education)
Technical writer
Treasurer/controller/chief financial officer
Veterinarian
Web editor
Word processing specialist

Ball State Majors for the ISTJ Personality Type

Accounting
Architecture
Biology
Business Administration
Business Information Technology
Computer Science
Construction Management
Criminal Justice and Criminology
Earth Science
Education
English
Exercise Science
Finance
Geology
Health Science
Industrial Technology
Information Systems
Journalism
Landscape Architecture
Legal Administration
Legal Studies
Management
Medical Technology
Natural Resources and Environmental Management
Nursing
Operations Management
Pre-Dental Preparation
Pre-Law
Pre-Medical Prepapration
Residential Property Management
Risk Management and Insurance

For more information on personality types visit these sites:

Betty C. Jung's Personality Page – Jobs and Careers: http://www.bettycjung.net/Personality.htm
CareerTypes.com:   http://www.careertypes.com/
Columbia State MBTI Types: http://www.columbiastate.edu/careerservices/MBTI%20Types/ISTJ.htm
Connecting Personality Types with Careers and Jobs:   
http://permanent.access.gpo.gov/websites/doigov/www.doi.gov/octc/typescar.html DiscoverYourPersonality.com:    http://www.discoveryourpersonality.com/istj.html
LearningChoices.com:    http://www.learningchoices.com/career-personality.htm
PersonalityPage.com:   http://www.personalitypage.com/info.html
PersonalityType.com:   http://www.personalitytype.com/
TypeLogic.com:    http://www.typelogic.com/

wayne State College Personality Page: http://www.wsc.edu/advising_services/career_planning/exploration/personality_careers/istj/

Print resources on personality types available in the Career and Experiential Learning Resource Lab, Lucina Hall 235:

Do What You Are
Please Understand Me II
What's Your Type of Career?

For further self-assessment visit the Career Center's Great Links to Explore page: http://www.bsu.edu/students/careers/students/links