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Periodic Data Quality Report

 
More info on Periodic Data Quality Report:
 Record Volume Update Section
 Summary and Data Quality Sections
   

Using the Data Quality Report

The Periodic Summary of Record Volume and Data Quality report is generated each time a transaction file is sent to CDC either monthly or quarterly. This report is divided into three major sections: Record Volume Update, Summary, and Data Quality and contains statistics for data quality indicators developed by CDC for the purpose of evaluating the data quality at the contributor level.

  • The Record Volume Update section can be reviewed to ensure that the number of records submitted to CDC for analysis is appropriate and consistent with previous transaction records submitted on either a monthly or quarterly basis and the number of records rejected were acceptable.
  • The Summary and Data Quality sections include statistics related to data completeness and data quality.
    • Data completeness is measured by the percent of records with missing data.
    • Data quality is evaluated using the following indicators:
      • Mis-codes are unacceptable data or codes for a field
      • Biologically implausible values (BIVs) are data values beyond what is considered a biologically plausible range
      • Cross-check errors identify inconsistency in the data between specific fields
      • Unusual data distributions identify a higher or lower than expected proportion of the population with a given response or data measurement
      • Low and high standard deviations identify a higher or lower than expected variability in a data measurement or data field, and
      • For the PNSS only, the completion code and record linkage errors identify records that contain incorrect, insufficient, or duplicate data based on the assigned completion code.


Understanding the Record Volume and Data Quality Indicators and Edits

Each time a transaction file is received by CDC from a contributor, the Periodic Summary of Record Volume and Data Quality report and a cover letter are generated and sent electronically back to the contributor. The cover letter states the date the transaction file was received at CDC, the number of records the file contains, the months and year that a majority of the data represents and the name of the contributor that sent the file. The letter also indicates the file name that CDC assigned to the transaction file. The Periodic Summary of Record Volume and Data Quality report has three sections: Record Volume Update, Summary, and Data Quality, that are discussed in detail in the following sections.


More Info on Periodic Data Quality Report

 

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Page last reviewed: May 1, 2009
Page last updated: May 1, 2009
Content Source: Division of Nutrition, Physical Activity and Obesity, National Center for Chronic Disease Prevention and Health Promotion

 

 



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