Week 2: Variance Management Systems Issues Bob Luttman, Robert Luttman & Associates
Home Page Overview Statistical Issues Multi-collinearity Cascade Effect Sample Size Halo Effect Operational Issues: Documentation and Reporting Too Much Data Traditional Pathway / Variance Documentation What's Wrong With This Picture? Operational Issues: Summary Legal Issues: Overview Legal Issues The Biggest Issue: So What? Summary and Conclusion Assignment Feedback Questions?	Traditional Pathway / Variance Documentation The traditional clinical pathway document is the 2 x 2 matrix (see below). With interventions and outcomes on the vertical axis and time (usually in days but at times in "phases") on the horizontal. Variances are captured on the bottom, or the back, or on a separate document.   While this format provides a complete picture of the pathway, it has some serious limitations as a documentation tool.

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