The conclusions of this study seem pretty obvious, but they support parents’ concerns about who their teens are hanging out with:

High school friendships can influence students’ academic performance and progress, according to a new study.

When surrounded by friends with a higher grade point average, teens have a tendency to perform better and boost their own GPA during the school year.

The opposite is also true, researchers cautioned: Students whose friends had a lower GPA were more likely to do worse in school over time.

 

Karen Kaplan adds:

The most significant influence appeared to be the grades of those labeled as “friends.” To explain this, the researchers hypothesized that the grades of “best friends” made little difference in the equation because they were probably very similar to start with. But the gaps between students and their “friends” were bigger, so there was more opportunity for influence.

 

Read articles at Healthday.com here and the LA Times here.

Read study from Plos One here.