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8. Weighting
The weighting applied to each (ranked and transformed) domain score in the construction of the final SIMD should reflect the relative importance of each domain. Under the current method, the criteria by which the weights were chosen is not completely explicit. Part of the judgement reflects the quality, or robustness of the domain score data; part reflects the weights used in previous versions of the SIMD.
We shall explore the impact of small changes in weights applied to each domain, to assess the sensitivity of the final SIMD rankings to the choice of weights. We shall also examine the choice of weights as a whole, to determine whether the relative importance of each aspect of deprivation can be separated into empirical and judgement-based components, and how these components could be assessed.
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