Lot 2: Agricultural and Environmental Statistics Multi-Beneficiary statistical Co-operation Programme for Bulgaria, Croatia, Romania and Turkey 2005 Lot 2: Agricultural and Environmental Statistics From Pilot Survey to Regular Survey Annalisa Pallotti Short Term Expert Asa 2st Joint Workshop on Pesticides Indicators Istanbul - Turkey 13-14 September 2007
Lot 2: Agricultural and Environmental Statistics Multi-Beneficiary statistical Co-operation Programme for Bulgaria, Croatia, Romania and Turkey 2005 Lot 2: Agricultural and Environmental Statistics What we have seen till now Different approache for every MS the choice of frame list Sampling design Reference period Tecniques of data collection Territorial reference Annalisa Pallotti
EVALUATION OF DATA QUALITY Multi-Beneficiary statistical Co-operation Programme for Bulgaria, Croatia, Romania and Turkey 2005 Lot 2: Agricultural and Environmental Statistics NEXT STEPS 1 CHECK THE SYSTEM 2 EVALUATION OF DATA QUALITY
Check the system List for sampling frame Definition adopted Multi-Beneficiary statistical Co-operation Programme for Bulgaria, Croatia, Romania and Turkey 2005 Lot 2: Agricultural and Environmental Statistics Check the system List for sampling frame Definition adopted Questionnaire Techniques for data collection
Check the system Sampling design Stratification Sampling errors Multi-Beneficiary statistical Co-operation Programme for Bulgaria, Croatia, Romania and Turkey 2005 Lot 2: Agricultural and Environmental Statistics Check the system Sampling design Stratification Sampling errors Estimation of the results
Data quality Identification of non-sampling errors Multi-Beneficiary statistical Co-operation Programme for Bulgaria, Croatia, Romania and Turkey 2005 Lot 2: Agricultural and Environmental Statistics Data quality Identification of non-sampling errors How to prevent this errors Identification of incorrect values Statistical checks to identify anomalous values Correction of errors using a criteria
Lot 2: Agricultural and Environmental Statistics Multi-Beneficiary statistical Co-operation Programme for Bulgaria, Croatia, Romania and Turkey 2005 Lot 2: Agricultural and Environmental Statistics Build the indicators to evaluate the quality of pilot survey (response rate, etc.)
THANK YOU FOR THE ATTENTION! Multi-Beneficiary statistical Co-operation Programme for Bulgaria, Croatia, Romania and Turkey 2005 Lot 2: Agricultural and Environmental Statistics THANK YOU FOR THE ATTENTION!