<p>Is doing research in high school an EC? What if you devoted different hours over the summer and school year? How would you write that on the common app?</p>
<p>Pretty sure it counts, but I have no idea how you write it.</p>
<p>Yes, it’s an EC. I’d put the hours during the school year in the box for hours and then offer a brief explanation of the summer hours as part of what you put in the description field. You can also include this information when you mention it on your resume (which you should attach to the Additional Information section).</p>