Final answer:
The research question for the Einstein, Mullet, & Harrison (2012) study cannot be identified with the provided information due to an incorrect citation; additional context is needed.
Step-by-step explanation:
The research question for the Einstein, Mullet, & Harrison (2012) study cannot be determined from the provided information as the study referenced does not correspond with the authors listed. To address the inquiry accurately, I would require additional context or the correct citation to identify the relevant study and its corresponding research question. It is essential to have the precise reference to provide an accurate and informed response.