If you wish to apply the values based on data previously collected using questions that are very close to the survey questions but not exactly the same, you can do so as a transitional measure, but must be completely clear about any assumptions made in your ‘Notes’. You must make the reader fully aware that your social impact assessment does not follow the method defined in Measuring the Social Impact and you should use the exact wording in your data collection in the future.
For the most part, applying the values to your own data will be least problematic when the outcome is a simple binary outcome, such as employment, that has not been created based on a redefinition of a response scale. Here, definitions of the outcomes in the national datasets are likely to match closely with standard or lay definitions.
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