i need help with this question 42

  Assignment  Assignment 1-3

You want to do research on how sugar affects attention in small children. Compare and contrast how this could be studied using the experimental and survey method. Make sure that you explain the appropriate parts as you set it up. Which method do you think would be better to use and why?

Rubric for Assignment 1-3

Experimental method (sample, control, variables) 8 pts
Survey method (random sample, unbiased questions and interpretation) 8 pts
Which is better and why 4 pts