According to annie murphy paul's article "the new marshmallow test: students can't resist multitasking," how many minutes did students focus on homework before their attention began to drift?

Two minutes

Explanation:

In the article "The New Marshmallow Test: Students Can't Resist Multitasking,"  we learn more about the studying habits of teenagers. The author states that:

"Students’ “on-task behavior” started declining around the two-minute mark as they began responding to arriving texts or checking their Face.book feeds. By the time the 15 minutes were up, they had spent only about 65 percent of the observation period actually doing their schoolwork."

This shows how pervasive new technology and social media is, and how it can affect the student's learning.

is this the question?