This white paper takes a look at personality, what it is and isn’t, if it can be measured, and the science behind personality-based assessments. The paper explains the difference between “personality tests” which tend to place a person in a box, by assigning a ‘type’ or identifier, and more focused personality-based assessments, which measure defined components of one’s personality.
The following TTISI Style Insights Technical Manual Version 1.0 contains information on the history and development of our behavioral assessment, from its beginnings to current implementation. Included are a host of mathematical, statistical, and psychometric analyses used to establish evidence of validity and reliability of this TTISI assessment. The reader interested in all the details is encouraged to read the manual in its entirety. However, if the reader is interested in the final results, one should focus on Section 16, which serve as a summary of what has been presented elsewhere in this work as well as thoughts for future projects and studies. Appendix B, starting on page 176, presents results from our logistic regression approach to O’NET occupational title identification through the Style Insights variables.
TTI SI recently received a request to provide a research-supported rationale for TTI SI’s use of natural and adapted DISC graphs in our reports. This is a good reminder that some things are so obvious to us internally that we fail to provide the outside world with the documentation needed to understand our decisions. The graphic separation of the DISC data is a great example. This paper will not only explain how these two graphs provide crucial differentiating information, it will also point out how a single averaged DISC graph can be very misleading when trying to understand human behavior.
TTI’s Personal Interests, Attitudes and Values 2 instrument (PIAV2) is anchored in design and development of their prior PIAV instrument. During the late summer of 2002, TTI initiated a review of the reliability of the six scales and the associated items. That assessment utilized a sample of 2136 cases from 43,325 available cases. These data contained 60% males and 40% females. These responses represent a diverse range of those utilizing this instrument. This assessment of the revised instrument is based on 1,130 responses containing 50.5% males and 49.5% females collected during the late summer of 2003 through the TriMetrix distribution system.
The following manual contains information on the history and development of the concept of motivation from its beginnings to current implementation of these concepts as psychometric assessments. Included in this manual are a host of mathematical, statistical, and psychometric analyses used to establish evidence of validity and reliability of the TTI Success Insights Motivation Insights assessment.