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Assessing accuracy of responses (Census Quality Survey)

The Census Quality Survey (CQS) report is one of the publications intended to help users understand the strengths and limitations of the 2011 Census data and how to use them appropriately.

The CQS results report provides an indication of how accurately the 2011 Census questionnaire was completed by the general public. It contains results from the CQS, as well information on the sample design and survey methodology.

Download the 2011 Census Quality Survey report (1.46 Mb Pdf)

Report findings

The CQS found that agreement rates ranged from 55.0 per cent for the question which asked the ‘year that you last worked’ to 99.8 per cent for the question ‘last week, were you waiting to start a job already obtained?’ The extent of agreement varied depending on the type of question: whether it was objective or subjective, whether it was answered by tick box or free text, and how many response categories it had. Of the questions asked in the CQS, almost three-fifths achieved agreement rates of 90 per cent and over, and almost three-quarters achieved over 85 per cent.

Along with other quality information published about the 2011 Census in the Quality and Methodology Information document (177.6 Kb Pdf) , the CQS results are intended to help users understand the strengths and limitations of the 2011 Census data and how to use them appropriately.

Background to the CQS

The Census Quality Survey (CQS) was run soon after the census to assess the quality of responses to the census questionnaire.

It was a voluntary survey, independent of the census and the Census Coverage Survey (CCS).

It aimed to measure the accuracy of answers given to census questions by asking a sample of households the census questions in a face-to-face interview. By comparing the responses given in the CQS to those given in the census, agreement rates were calculated which provide an indication of how accurately the 2011 Census questionnaire had been completed by the general public.

More quality information

Read more about 2011 Census quality in the Quality and Methodology Information document (177.6 Kb Pdf) .

 

Content from the Office for National Statistics.
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