A Columbia University study linked soda consumption to behavior problems in children.
Researchers examined data from a previous study that followed 2929 mother-child pairs. One
Survey asked about behaviors of the child and also about soda consumption. They found that the
More soda the kids drank, the more behavior problems they had. What aspect of a well-designed
Experiment is absent from this study?
A) blinding
B) a control group
C) randomization
D) all of these
E) a placebo

Question

Quizplus · Accepted Answer

The study lacks all three aspects of a well-designed experiment: blinding, a control group, and randomization.

A Columbia University Study Linked Soda Consumption to Behavior Problems