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Quality Panels: What’s the Optimal Frequency for Surveying?
Once a month? Twice? Three, four, five times? How much is too much, and how much is too little? Those of us who work in market research know that this is a question often posed by companies that ...
August 14, 2019 | Andreina De Abreu
Survey quality: Why using quality controls?
On a previous post we told you about the Online Panels Mystery Shopping exercise done by our team. Let’s do a recap: our team created two fictional panelists identities and then joined 10 Online ...
July 25, 2019 | Maria García Limón
Non-random sampling: snowball sampling
With this post, we'll conclude our series on sampling techniques. Today we’re going to talk about the snowball sampling method. Snowball sampling is a nonrandom sampling method in which the ...
February 06, 2017 | Carlos Ochoa
Non-random sampling: quota sampling
At last, our series of posts on sampling, has reached the all-star of non-random sampling: quota sampling. This method is most often used in online research conducted through panels. We could look at ...
February 01, 2017 | Carlos Ochoa
Non-random sampling: availability sampling
This post marks the second part of our series on sampling methods. This second installment will describe non-random sampling methods. Remember: we talk about nonrandom sampling when we don’t have ...
January 30, 2017 | Carlos Ochoa
Random sampling: cluster sampling
With this post dedicated to cluster sampling, we conclude our first block of posts on random sampling. With our next post, we will launch into nonrandom sampling methods, which are used most commonly ...
January 25, 2017 | Carlos Ochoa