WHO publishes data quality evaluation manual

This manual presents 3 tools to evaluate and improve quality of data 

• Coverage evaluation survey to validate reported coverage (obtain a statistical point estimate)
• Data Quality Assessment to verify reported data and assess capacity of data management and reporting systems
• Supervisors' Coverage Tool to classify coverage as above or below a threshold

" This field manual presents the three tools and their methodologies, with stepwise explanations on planning, implementation, and interpretation and action, to guide improvements in the quality of reported data and information on preventive chemotherapy for NTDs. Additional resources are available to accompany the guides."