| 单词 | survey data |
| 释义 | survey data Data collected by surveys of individuals or firms. Surveys may be total in their coverage, as with census, or may be based on samples of the relevant population. They may be conducted by government bodies, either specifically set up for the purpose, for example the Office for National Statistics (ONS) in the UK, or in the course of their normal work. Data on UK incomes, for example, are collected by the Inland Revenue, and data on trade by the Department of Trade and Industry (DTI). Surveys are also conducted by private commercial bodies such as market research firms, by private bodies such as the Confederation of British Industry (CBI), and by academic institutions. Survey data are subject to difficulties from low response rates to surveys where replies are not compulsory, and poor incentives to give either complete or accurate replies to questions even when response is compulsory. This is particularly serious where the information requested is either confidential, or not available without special trouble and expense for the individual or firm concerned. |
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