Indeed, there is no better measure of personal taste than the food one eats. Literally and figuratively. What our presidents eat is a function family heritage, personal preference, physical condition and social obligation. In sum: a president's favorite meal is NOT always what's served in the White House.
The points apply equally to research talks, lectures, and non-technical presentations. 1  The average attention span of an adult is 20 minutes.  Implication: you should ensure that the first 20 minutes of your talk include any material that you want your audience to remember.
Some psychologists claim the typical student s attention span is about 10 to 15 minutes long, yet most university classes last 50 to 90 minutes. Studentsâ attention levels vary widely based on factors like motivation, emotion, enjoyment, and time of day.espite the popular belief that students have âshortâ attention spans ranging from 10 to 15 minutes, there is considerable evidence to suggest otherwise. In a 2007 literature review, psychologists Karen Wilson and James H. Korn concluded there is little evidence to support this belief.