Reference no: EM132815173

Alice is tasked with collecting a record of the number of items that customers purchase during a single day at a store. Assume that she is unaware of the studies goals, but is properly trained to record the number of purchases. She walks around the store with a notebook, jotting down notes, when people see her writing, they put away any objects they were looking at and walk away.

Which of the following would NOT be helpful in preventing the change in customer behavior

A. Alice could recruit customers to be additional observers for the study

B. Alice could observe customers covertly by looking at security footage

C. Alice could record purchases by looking at purchase receipts for that day

D. Alice could walk around the store for an extended period of time acting like an employee until customers get used to her taking notes