Central location tests are a type of Quantitative research technique.
They are product and communication development or marketing tests performed in controlled environments, contrary to home-user tests, which take place where the products would actually be used.
A Central Location Test (CLT) is one in which the research is conducted in a location, such as a room in a shopping mall.
In this instance, consumers would be recruited to participate in a research product at the mall and the research would be conducted and completed at that time.
CLT is mainly used to shortlist one or few from multiple options under consideration.