Question

which source would be most reliable for researching the most effective types of physical activity for high school students?
a blog post from a high school student who discusses his after - school activities with his friends and posts humorous photos
an online article written by a personal trainer who is looking for new clients and who posts about client success stories
an article from a university that uses advanced statistics to determine the total calorie loss for 10 different physical activities
an article in an online exercise magazine written by a parent who is concerned about her childs obsession with video games

Explanation:

A university - sourced article using advanced statistics is more reliable. A high - school student's blog post is personal and anecdotal. A personal trainer may have a bias to attract clients. A parent's article in an exercise magazine is likely based on personal concerns rather than scientific research.

Answer:

an article from a university that uses advanced statistics to determine the total calorie loss for 10 different physical activities