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Dependent Data Collection in ONS Business Surveys Jacqui Jones Methodology Directorate Office for National Statistics Overview • ONS Statutory Business Surveys • the use of DDC • some pros and cons of DDC ONS Statutory Business Surveys • 90+ Statutory Business Surveys • 1,000+ data collection instruments • mail out approximately 2.5 million paper questionnaires a year. Samples • rotating panel samples for businesses with under 10 employees • continuous panel samples for large businesses ONS Statutory Business Surveys Type Business Prices & Sales e.g. Retail Sales Index Employment, Earnings & Productivity Financial & Accounting e.g. New Earnings Survey e.g. Insurance Frequency Monthly Quarterly Annual Monthly Quarterly Annual Monthly Quarterly Annual Mode Paper TDE Paper TDE Paper TDE - nils The use of DDC • paper questionnaires • paper & TDE validation DDC on paper self-completion questionnaires Producer Price Index: • did provide back prices to respondents • removed due to data quality and confidentiality issues DDC on paper self-completion questionnaires New Earnings Survey • - feedback employee: name employee number NI number workplace postcode home postcode DDC in validation • paper self-completion • telephone data entry (TDE) • web Pros and Cons of DDC Pros: • reduces respondent burden for paper selfcompletion Cons: • increases respondent burden in validation • reduces item nonresponse • increases measurement error? • reduces operational costs of capture &/or coding • threatens the maintenance of data confidentiality Thank you
