Oireachtas Joint and Select Committees
Thursday, 13 October 2016
Joint Oireachtas Committee on Finance, Public Expenditure and Reform, and Taoiseach
National Economic Output: Director General, Central Statistics Office
10:00 am
Mr. Pádraig Dalton:
We have changed our sampling approach because there was a specific sampling issue that gave rise to an element of that issue. Surveys can be subject to sampling errors, and the sampling error for that sector was, unfortunately, larger than we would normally have. We undertook a methodological project. Our statistical methods and development team undertook a review of the quarterly national household survey, QNHS sample and we have now changed the sampling methodology behind the QNHS to ensure that those types of issues will not arise again.
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