Dr. Mark S. Majors is a counseling psychologist with extensive psychometric experience that includes data analysis on the 1994 Strong Interest Inventory and the MBTI® Form M, as well as the development of the IRT scoring. He was coauthor for the MBTI® Form Q Manual. Mark is the developer of the Majors Personality Type Indicator, Majors Elements of Personality and the Majors Occupational Environment Measure, available at Leader’s Beacon.