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One of our web’s most visited sections is the SAMPLE CALCULATOR. Thanks to this application, you can get an estimation of the sample size you need for your survey just providing basic data about the ...

The Likert scale is known to be one of the most popular and used items in surveys. In contrast to dichotomous questions with yes/no answers, the Likert scale allow us to measure attitudesand to know ...

We start 2015 with a new challenge: a brand new English blog. This blog is intended to be an open platform to share with you the latest updates on the declarative and observational Market Research ...