I have seen responses from surveys that are converted in a number of ways, but do not understand the logic. Example: A 7-pt. Likert-type scale that asked how much one disagrees/agrees with the statement. It was originally scored at -3/+3, with 0 being neutral. It was converted by adding +4 if the statement was written in a "positive" sense and -4 if "negative."
The model was multiple regression.
My question: why is it necessary to do this? What is the benefit?
Thanks. DW
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