Majors Personality Type Inventory™ (Majors PTI™) Manual

The Majors PTI™ Manual is a practical, ethics-focused guide for professionals who administer and interpret the Majors Personality Type Inventory™. It explains how to use this modern Jungian assessment to provide accurate, actionable insights on how clients direct energy, gather information, make decisions, and orient to their environment. The manual also introduces and clarifies the Majors/Jungian 8-Process Scores for deeper, function-level feedback.

What You'll Learn

• Administration: Standardized procedures for delivering the assessment, setting expectations, and ensuring a comfortable test experience.
• Scoring & Interpretation: How to read the four dichotomies, the 16-type result, and the 8-Process Scores to inform precise, client-ready feedback.
• Feedback Structure: Best practices for debriefs that connect type insights to leadership, learning, and work/activity preferences.
• Applications: Use in coaching, team development, career counseling, and personal growth with diverse populations.

Advanced Psychometric Features

• Differential Intensity Weighting (DIW): Captures both choice direction and similarity intensity for more precise results.
• Neutral Response Option: Reduces forced-choice error and improves measurement quality.
• Type Precision Module: Adaptive scoring that refines results based on the respondent's pattern of answers.

Reporting

• Majors PTI Personality Report™ (client-facing): Explains four dichotomies, shows graphical scores (no raw numbers), provides a four-letter type code, whole-type description, and application insights for leadership, learning, and work/activity preferences. Includes a concise overview of all 16 types and guidance for continued growth.
• Professional Report (practitioner-only): Presents numeric results for the four dichotomies and the 8-Process Scores, enabling nuanced interpretation and tailored development plans.

Ethical Use & Training

Proper use of the Majors PTI™ requires training in psychological testing, including psychometric principles and Jungian type theory. Reading this manual is necessary but not sufficient for ethical practice; it should be paired with a comprehensive training program and supervised experience.

Who It's For

Certified coaches, counselors, OD/HR practitioners, educators, and psychologists who want a reliable, modern Jungian tool for individualized development, stronger teams, and clearer career direction.

Why Use the Majors PTI™ Manual

• Consistency: Clear standards for administration and interpretation across settings.
• Clarity: Practical language that links type to observable behaviors and goals.
• Depth: Function-level insights via 8-Process Scores to move beyond surface type labels.

Equip your practice with an evidence-informed approach to personality assessment that transforms data into meaningful, ethical, and actionable development plans.