Chan has been getting to school early for a meeting with his…

Chan has been getting to school early for a meeting with his quiz bowl team as they are getting ready to compete. In order to keep up with his schoolwork, he has been on his laptop later and later in the evening. Even when he is finished, it seems to take his body more time to become sleepy even though he is tired throughout much of the day. This didn’t happen when he was in elementary school, even when he went to before school practices. Chan is most likely experiencing the ______.

Darius and his parents have agreed to be part of a study on…

Darius and his parents have agreed to be part of a study on musical abilities and grade point average in school. Darius is just 12 years old. The study requires that he be assessed 3 times, every 2 years, for a total of 10 years. Darius is involved with a ______ research study.

Mohamed has been interacting with social media a lot lately….

Mohamed has been interacting with social media a lot lately. He has even been finding his news about the world on social media. He has noticed that some of his beliefs are starting to change in agreement with the media he is consuming. Mohamed is experiencing ______.