The Subject-Object Interview Certification Program

What is the Subject-Object Interview?
The Subject-Object Interview (SOI) is a reliable and finely-tuned instrument designed to explore and identify the complexity of a person's meaning-making and current position on the developmental continuum of adulthood as described by constructive-developmental theory¹. Seen as the gold standard of assessments, the SOI is acknowledged as "theoretically the most elegant, and methodologically the most differentiated, of the theories and measures"² of adult development.

The Subject-Object Interview Certification Program
Our program is unique in the field. We provide expert guidance and a learner-centered context for you to develop the expertise, confidence, and competence to use the SOI successfully in your work. We start with interactive training sessions in which you will acquire foundational knowledge, develop scoring skills, score real SOIs, and have a first-hand experience of the SOI. We then offer interactive mentoring sessions in which you will deepen developmental reasoning, increase scoring competence, and conduct the end-to-end SOI process. You will receive targeted feedback and have the time to ask the questions that are important to you. After the mentoring sessions, you can start the Reliable SOI Scorer certification process.

You will learn the SOI with its foremost expert and master trainer and certifier, Dr. Nancy Popp. Dr. Popp has been applying constructive-developmental theory in both research and practice since the early 1980s when she began her work with Dr. Robert Kegan at Harvard.

The learning and experience gained through your participation in this program will give you sufficient background to start engaging in the field of adult development. When you have met the criteria for becoming a Reliable SOI Scorer, you will have access to our expert, reliable scoring services and support. This access allows you to immediately put Subject-Object Interviews “to work” in your practice or research.

Ongoing Learning
This program is also the foundation and prerequisite for becoming certified as an official "SOI Reliable Scorer" allowing you to use the SOI in your work. Becoming an "SOI Reliable Scorer" will also allow you to join our:
  • SOI Lab: A community of SOI reliable scorers and  individuals who have completed training and guided mentoring in our program dedicated to deepening their knowledge on the constructive-developmental theory, their expertise and rigor on the SOI scoring process, and finding new ways to bring this powerful lens to the forefront of both practice and research of other fields.
  • Masterclasses: Expert-facilitated, 3-session, live, online classes connecting you with other SOI program alumni and SOI reliable scorers for in-depth learning on the applications of constructive-developmental theory and the SOI.

ICF Credits
The program has been approved by ICF. Participants who complete the program can earn the following ICF credits: Core Competencies 17, Resource Development 19.

For more information about the program or anything else please contact us at

¹Kegan, R. (1982). The evolving self: Problem and process in human development. Cambridge, MA: Harvard University Press.
¹Kegan, R. (1994). In over our heads: The mental demands of modern life. Cambridge, MA: Harvard University Press.
²Torbert, W. R. (2014). Brief comparison of five developmental measures: The GLP, the LDP, the MAP, the SOI, and the WUSCT. Retrieved from:

Other services:
Executive Coaching
Organizational Coaching
Developmental Diagnostics & Assessments
Executive Development Workshops
Upcoming SOI Programs

Fall 2021 cohort
Training: 6 sessions will be held weekly starting on September 7
Mentoring: 12 sessions will be held weekly starting on October 26

Spring 2022 cohort
Training: 6 sessions will be held weekly starting on March 1
Mentoring: 12 sessions will be held weekly starting on April 19

Register Here