Type Resources is pleased to offer Majors' Instruments. Now a more accurate way to determine your 4-letter type code. If you are MBTI Certified/Qualified, you may begin purchasing these instruments now! If not, we offer both webinar and face to face certification training.
Mark Majors, Ph.D., designed the Majors Assessments (PTI™, PT-E™, and OEM™) from decades of experience with instrument design. At CPP, he was a data analyst for the MBTI® Form M, and he directed the development of the MBTI® Form Q. Majors was also director of research at CAPT where he led research on MBTI® Step III and contributed to the Pearson-Marr Archetype Indicator (PMAI) and the Klein Group Indicator (KGI). In addition, he was the central data analyst and scoring developer for the 1994 Strong Interest Inventory.