May 2003
Intermediate to advanced
323 pages
6h 8m
English
The most useful data with which to compare survey results are data from your company's past surveys. If an external firm has that data and you do not, staying with that firm has an advantage. If this is your first survey, there is no prior data for your company. You may want to compare results with those from other companies. A firm that regularly conducts surveys probably can provide such data.
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