Judging Sizes (< 10 minutes)

Informed Consent Form

In this study you see two circles each surrounded by other circle.  You will be asked which of the two of these central circles is larger, the left or the right. The entire experiment will take about 10 minutes.  No personally identifying information is collected so the data is completely anonymous.  You may leave the experiment at any time you wish without penalty.  

If you have any questions, please contact John H. Krantz, Ph.D., krantzj@hanover.edu. If you have any ethical concerns, contact Dean Jacks, Ph.D., jacks@hanover.edu.

By clicking on this link you are agreeing to participate in this study.