Question

A shampoo company recently paid a consulting firm to produce a study to determine if using their product resulted in cleaner hair than other brands. What is wrong with this study?

Answer 1

You can’t record how clean someone’s hair is it depends on how they wash it and they probably wash it different every time. You could measure how dry their hair is after using that certain company’s shampoo.

Answer 2

Answer: This is a self-interest study is correct on gradpoint/connexus