A Framework for the Accuracy Dimension of Data Quality for Price.pps
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1、A Framework for the Accuracy Dimension of Data Qualityfor Price StatisticsOttawa GroupOttawa,October 2007Presenter:Geoff NeideckAustralian Bureau of StatisticsAim of the PresentationIntroductionExtending the ABS Quality FrameworkComparisons with other FrameworksWhy Do Errors Occur?Key Principles in
2、Managing for AccuracyQuality GatesIntroductionMany NSOs have experienced errors in their prices statisticsSome major reviews of practices have been undertakenSome serious consequences Undermining reputation and raising questions of reliabilityExtending the ABS Data Quality FrameworkDimension of qual
3、ity:RelevanceTimelinessAccuracyCoherenceInterpretabilityAccessibilityExtending the ABS Data Quality FrameworkACCURACYDesign ErrorSampling Error and Statistical BiasIndex BiasProcess Design ErrorsQuestionnaire Design ErrorSystems ErrorsNon-design ErrorOperations ErrorsData Source ErrorsComparisons wi
4、th other frameworks ILO CPI Manual Ch.11 Taxonomy of ErrorsSampling errorSelection errorEstimation errorNon-sampling errorObservation errorOver coverageResponse errorProcessing errorNon-observation errorUnder coverageNon-responseComparisons with other frameworks IMF DQAF for CPI/PPIsWhy Do Errors Oc
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