Frequently Asked Questions

"The meeting of two personalities is like the contact of two chemical substances: if there is any reaction, both are transformed."
Carl Jung
Research and the MBTI® Tool

The MBTI® instrument has been the subject of thousands of research projects studying the links between personality type and different aspects of life.

There are two organizations in the United States that assist with research related to the Myers-Briggs Type Indicator® (MBTI®) instrument and those are:

The Myers-Briggs Company, the publisher of the MBTI assessment, reports and support materials, and

The Center for Applications of Psychological Type (CAPT), a nonprofit organization founded in 1975 by Isabel Briggs Myers and a Clinical psychologist, Mary H. McCaulley, Ph.D.

The Myers-Briggs Company offers reduced prices for researchers who meet certain requirements. To learn more, visit the The Myers-Briggs Company research division at

CAPT offers some research consultation and assistance. If you are requesting help for a research project, please forward as much detailed information as possible related to your research questions and design. Please send these inquiries to

CAPT is also the home of the Isabel Briggs Myers Memorial Library. It contains the largest collection of materials related to psychological type in the world. While this library does not lend books or materials, it does have scans of many documents made available for the purpose of type related research.

To discover what the Isabel Briggs Myers Research Library collection contains, and what documents are available, you can search CAPT's online catalog named MILO (This acronym stands for Mary and Isabel's Library Online).

To learn more about the resources contained within MILO, including the complete collection of the Journal of Psychological Type go to

If you would like to see additional documents from the library, please send your request to . Note: There may be a small service cost for these services.

If you are interested in pursuing research involving the theory of psychological type and other Jungian concepts or if you need Selection Ratio Type Tables (SRTTs), contact the Center for Applications of Psychological Type by , or by phone, 800-777-2278.

My MBTI Personality Type
MBTI® Basics
Take the MBTI® Instrument
Hiring an MBTI® consultant
My MBTI® Results
Understanding MBTI® Type Dynamics
Type in Everyday Life
MBTI® Type at Work
Personality and Careers
Type Use in the Professions
Type and Learning
Psychological Type and Relationships
Type in Personal Growth
Using Type as a Professional
Become Certified to Administer the MBTI® Tool
MBTI® Certification Program
Training Applications
MBTI® Master Practitioners
MBTI® Step II Instrument
MBTI® Step III Instrument
Versions of the MBTI® Questionnaire
Purchasing MBTI® Materials
More About Type
Books & Articles
Research and the MBTI® Tool
MBTI® Organizations
International Use
Trusting MBTI® Information on the Web
Misconceptions about the MBTI® Assessment
About Us
Objectives and Mission
Ethical Use of the MBTI® Instrument
Frequently Asked Questions
What are the ways to take the MBTI® assessment?
How do I purchase MBTI® materials?
What are the requirements to administer the MBTI® instrument?
How do I get permission to adapt the MBTI® instrument?
What are the guidelines for ethical use of the Myers Briggs® assessment?
Where can I find information about MBTI® research?
Legal - Privacy - Site Map - Unsubscribe -
The Myers & Briggs Foundation | 203 NE 1st Street | Gainesville, FL 32601 | All rights reserved 2023
Share this site on Facebook Share this site on Twitter Share this site on LinkedIn