Version: Impact Model v2.3 (FY2024) — approved by Finance & HR Analytics
Performance Delta Calculation: 90-day pre-training baseline vs. 90-day post-training performance rating (1-5 scale), controlling for tenure, role level, and prior rating trend
Attrition Analysis: Regrettable attrition rate calculated for trained cohort vs. matched control group (propensity-score matched on tenure, role, department, performance) over 12-month observation window
ROI Formula: (Performance Uplift Value + Retention Cost Avoidance + Productivity Gain) ÷ (Program Cost + Participant Time Cost) — conservative assumptions applied
Control Variables: Tenure, role level, department, prior performance trend, manager quality score, promotion eligibility
Data Sources: Workday HRIS, Cornerstone LMS, Salesforce CRM, Finance ERP — monthly refresh cadence