Study 1 Description: The current study will examine the idea that exercise will interfere with performance in an attention task. In the experiment, participants will be strapped to a treadmill while they also respond verbally to images on a computer screen. The experimenter will control the speed of the treadmill during the experiment. The participant will also be told that the experiment takes 1 hour and that they will receive $250 if they successfully complete the experiment.

All participants will sign a consent form if they wish to participate. To avoid distractions during the experiment, the participants will run in a soundproof room and no communication between the participants and the experimenter will be allowed after the experiment has started. However, as a safety precaution, the experimenter will continuously monitor the participants’ heart rates. After the participant is given instructions, the participant will be strapped to a restraining device that is connected to the treadmill. The participants’ task will be to respond to target stimuli by verbally identifying the objects presented. The participants will be fully debriefed after the experiment.

**1A) Write a brief risk-benefit analysis for this study. Consider whether the study has sufficient scientific merit: how will the participants and/or society benefit, and does this outweigh potential risks to the participants? Is the study ethically justifiable given your analysis? Why or why not?

**1B) Does the study place participants at risk for either physical or psychological harm? If so, what aspects of this study cause this risk? Can you suggest less risky procedures that would still provide the researcher with the same information?

**1C) What aspects of this study would be considered coercive (forced and, thus, unethical)?