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Mail analysis
Periodic analysis of incoming mail.
Economical
Writers tend to be more critical than complimentary. Self-selected sample.
My serve as early warning signs. May indicate the need for more formal research.
Does not reflect a cross section of public opinion or even the views of a particular public.
Economical
Writers tend to be more critical than complimentary. Self-selected sample.
My serve as early warning signs. May indicate the need for more formal research.
Does not reflect a cross section of public opinion or even the views of a particular public.
Tags: Research
Quelle:
Quelle:
