River Sampling

People who are willing to be members of panels differ in many ways from people who aren’t. This too lessens the representativeness of panel...

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Sample Matching

One of the “magic” techniques is sample matching. The easiest way to think of sample matching is that is quota sampling on steroids. Now you are not...

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Quota Sampling

Given that effective sample size declines dramatically when the characteristics of the sample don’t approximate national representativeness, one...

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Agile Analogy

Thinking about our presentations on agile market research recently reminded me of a story from my younger days. In that time, I worked in a single...

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