Text stimulus (table): Table titled 'Branch implementation and outcome change.' Columns: Branch, Policy adopted, Staff training complete, Monthly exception review, Reduction in group outcome gap. Rows: Branch 1, Yes, 95%, Yes, 8 points; Branch 2, Yes, 85%, Yes, 6 points; Branch 3, Yes, 40%, No, 1 point; Branch 4, Yes, 30%, No, 0 points. Display details: checkmarks for Yes. What is the most careful conclusion about implementation fidelity?