Survey Data, Weights, Complex Samples

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Survey Data, Weights, Complex Samples

Postby wielager » Fri Feb 10, 2012 3:11 am

I'm going to be processing data from a survey of retail stores. The entire population of retail stores received the survey. We've received responses from 35% of independent stores and 62% of chain stores. I want to weight my analysis so the results will reflect the proportion of independent and chain stores in the population.

Do I need Complex Samples to perform this analysis? If so, how would I setup the plan file? If not, how do I do the weighting? The variable Store_Type contains "I" for an independent store and "C" for a chain store.

Thanks in advance!
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Re: Survey Data, Weights, Complex Samples

Postby statman » Fri Feb 10, 2012 3:19 pm

Not unless it is in fact a stratified sample whereby you have stores within, e.g., counties within states within regions of the US or something similar. So, if simply weighting by the response distribution to the population then the weight is N/n or perhaps the % you mention
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