PMC4371420_01
Project Team Structure
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We created an interdisciplinary team with a data team leader, project manager, quality assurance analyst, and masters- and doctoral-level analysts and programmers (Figure 1).
Quality Assurance (QA) Process for each Data Set
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We created a formal QA and feedback process to track and review data (Figure 2).
Data Quality Assessment (QA) Implementation
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At the individual site, there are five domains of data quality checks of increasing complexity that can be applied to data (Figure 3).