Team Performance Science Guide · Part VII · evidence chain
Performance Science Library
Every evidence pill in Performix traces back through this library. Source papers and books are ingested by the Research-to-Model Engine; constructs, validated measures, and survey items are derived from them and weighted by evidence strength.
191 sources
655 findings
586 constructs
525 survey items
last update 2026-06-03
FIELD STUDY
Xanthopoulou et al. (2008). Working in the Sky: A Diary Study on Work Engagement Among Flight Attendants. Journal of Occupational Health Psychology.
Ingested 2026-05-23 · 9 findings extracted · 9 constructs derived · 11 survey items derived
A work-related state of mind characterized by vigor, dedication, and absorption.
strong
Constructs derived (1)
Work EngagementSUPPORT
Survey items (1)
Today, I felt proud of the work I did.
Evidence weight: 0.70 · last calibration: 2026-06-03
Employees’ estimates of their capacity to orchestrate performance on a specific task.
strong
Emotional support from colleagues, such as showing personal interest.
strong
Activities related to employees’ formal role requirements.
strong
Activities that are not part of formal role requirements but promote organizational effectiveness.
strong
General In-Role Performance Scale
strong
General Extra-Role Performance Scale
strong
State Work-Related Self-Efficacy Scale
strong
Utrecht Work Engagement Scale (UWES)
strong