Question

Several groups of researchers conducted experiments to study how students' diets affected their performance in school. Researchers asked students to record what they ate every day for a year. The findings suggested that students who ate a higher amount of vegetables as compared to protein tended to have better grades. What can the researchers validly claim based on these findings?

Answer 1

School children should try to eat more vegetables if they want to improve their grades.

The American diet is deficient in the vitamins and minerals that help with mental processes.

Students with higher grades have parents who are better educated about diet.

There may be a correlation between a diet high in vegetables and better grades.

Answer 2

i would guess either a or c

Answer 3

I would say the answer is D... There may be a correlation between a diet high in vegetables and better grades... We can not assume that students get higher grades who eat better for there could be other factors involved that could change the outcome such as better work ethic or pressure from parents... The correlation between the two have been developed but other factors could change the response... An experiment like this is not made to be full proof from what it it stating... Thats just how I look at the question... :)

Answer 4

A major part of the question is that it suggests not that it is proven...

Answer 5

Thanks

Answer 6

No problem! Hopefully I am right :)