Market research, like all social science research, falls
into one of two categories: quantitative and qualitative. Quant data can be categorised and statistically measured,
whereas qual data is non-objective, and cannot
be categorised systematically (e.g. numerically).
The difference is pretty stark, but market research is
particularly susceptible to pulling quant statistics out of the ass of qual
data. This kind of research, unsurprisingly, tells us nothing, and I have found
the perfect example to demonstrate why.