2017 Reliability Study
This 2017 report takes our reliability to a new level by incorporating reliability, means and gender groupings on behaviors, motivators and driving forces for 19 different languages.
Style Insights® 2015 Reliability Study
This externally reviewed in-depth study provides statistical evidence of reliability for 20 different behavior and motivator assessment languages.
TTI Success Insights Style Insights® 2016 Temporal Consistency Report
Temporal consistency (a form of test-retest) is one of many forms of reliability that help establish an assessment as fully reliable and valid. This report of 7,742 individuals provides continuing evidence of temporal consistency, which adds to the argument that the TTI SI Styles Insights assessment has test-retest reliability.
TTISI Behavioral Assessment Test-Retest Pilot Study
This test-retest pilot study included 86 participants who took the behavioral assessment twice with an average separation of 38 days. The comparison showed no significant difference in the two reports and reliability was above 0.8 on both natural and adapted constructs.
TTI SI Style Insights® v Big 5 Personality Inventory: University Students Validation Study
One way to establish different forms of validity is to run comparison studies against known, established psychometric assessments. In this study, the TTI Success Insights Style Insights® behavioral assessment is compared with the Big Five Personality Inventory on a population of US university students. In general, the study shows some interesting correlations, but more importantly, the study shows that these two assessments are measuring different constructs.