A key area for any assessment is whether the assessment data may be used, in some form, to generate a predictive model. The results are very solid and provide solid support for a follow on, longitudinal study to determine the potential predictive power of such a modeling approach.
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.
This externally reviewed in-depth study provides statistical evidence of reliability for 20 different behavior and motivator assessment languages.
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.
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.