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Inside this report, Mark Majors, Ph.D. discusses:
Why is Instrumentation Important?
Consistency and Standardization
Measurement Reliability as an Anchor for Consistency and Standardization
Validity or the Consistency and Standardization of Meaning and Language
What Does an Instrument Do?
The Proper Use of an Assessment of Personality Typology
Some Frequently Asked Questions
The Majors PTI History and Psychometrics
About Mark S. Majors, Ph.D.
Dr. Mark S. Majors is a counseling psychologist with extensive psychometric credentials. His Ph.D. in Counseling Psychology and Multicultural Studies is from the University of Nebraska-Lincoln and he earned a MS and BS in Psychology (with distinction) from Iowa State University. He is the author and developer of the Majors Personality Type Inventory™ (Majors PTI™), Majors Occupational Environment Measure™ (Majors OEM™), Majors Elements of Personality Type™ (Majors Elements™), and the Majors SGI (Majors Spiritual Gifts Inventory). Mark also provided the data analysis on the 1994 Strong Interest Inventory, the MBTI® Form M and Form Q, as well as the development of the IRT scoring for the MBTI® Form Q, and coauthor for the MBTI® Form Q Manual. While a research scientist at Consulting Psychologists Press, he led the psychometric and scoring development of the Strong Interest Explorer.