Biases: Selection, Response, nonresponseEffects: Placebo, Rosenthall, Hawthorne, Missing Data

4. Identify the correct term for the type of bias/effect being defined. a. A survey is mailed to 1000 Waco residents. Only 248 of the surveys are returned. b. A secondary researcher noticed that subjects changed their answers when the lead researcher raised his eyebrows upon hearing their first response. C. The store manager at Big Lots randomly surveyed twenty-five morning shoppers to determine how all of the shoppers felt about the new store hours. d. Mr. Hall surveyed fifty high school students asking them if they have ever skipped school. y e. Students who were viewed cheating by camera did not cheat when people were brought in to monitor their exams. f. Although the child only received a sugar pill, she claimed she no longer had a headache. str Youren abadold Introduction to Statistics 31