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Web
Surveys
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Web Survey Features
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Data validation |
A wide range of facilities exist to ensure final data is clean and complete, such as:
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Requiring a question to be answered. |
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Ensuring illogical combinations of responses cannot be entered –
for example, ‘None of these’ and another response. |
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Ensuring a certain number of items are checked (for example,
exactly 2 items, at least 2 items, or less than 5 items). |
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| Ensuring numeric data is logical (for example, hours worked per week is between 0 and 168). |
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Ensuring numeric data adds to the correct total where relevant (for example, 'Out of your last ten purchases, how many ...' adds to 10). |
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Relational numeric comparisons – for example, checking the number of children in household is at least one less than total number of people in household. |
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