Suppose that marketers at Lever Bros.are trying to determine whether the use of free samples of Snuggle fabric softener was the reason for a sales increase in a particular store.The type of research conducted to answer this question is

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This is an experimental research design as the marketers are trying to determine causality – whether the use of free samples of Snuggle fabric softener caused a sales increase. In an experimental design, researchers manipulate an independent variable (in this case, the use of free samples) to observe its effect on a dependent variable (sales). Thus, the use of a control group would be necessary to compare the results and determine causality.

Suppose That Marketers at Lever Bros