A Researcher Asks a Group of Unhappy People to Follow

question 77

Multiple Choice

A researcher asks a group of unhappy people to follow the advice in their newspaper horoscopes,and finds that over six months most of them become happier.What is the main problem with this research?​

• A)Most scientists are skeptical of horoscopes.
• B)​The study has no control group.
• C)​The study has too many independent variables.
• D)​Six months is too short a time for a before-and-after study.